Home / 525,614.20-788,421.30-304,430.20

Finding the Fourth Proportional to 525,614.20, 788,421.30 and 304,430.20

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Solution

The fourth proportional to 525,614.20, 788,421.30 and 304,430.20 is: 456,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,614.20 : 788,421.30 = 304,430.20 : x
  2. Step 2: Convert to fraction form
    525,614.20/788,421.30 = 304,430.20/x
  3. Step 3: Cross multiply
    525,614.20x = 788,421.30 × 304,430.20
  4. Step 4: Simplify right side
    525,614.20x = 240,019,254,043.26
  5. Step 5: Solve for x
    x = 240,019,254,043.26/525,614.20
  6. Step 6: Final answer
    x = 456,645.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.