Home / 525,504.20-788,256.30-315,552.20

Finding the Fourth Proportional to 525,504.20, 788,256.30 and 315,552.20

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Solution

The fourth proportional to 525,504.20, 788,256.30 and 315,552.20 is: 473,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,504.20 : 788,256.30 = 315,552.20 : x
  2. Step 2: Convert to fraction form
    525,504.20/788,256.30 = 315,552.20/x
  3. Step 3: Cross multiply
    525,504.20x = 788,256.30 × 315,552.20
  4. Step 4: Simplify right side
    525,504.20x = 248,736,009,628.86
  5. Step 5: Solve for x
    x = 248,736,009,628.86/525,504.20
  6. Step 6: Final answer
    x = 473,328.30

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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.