Home / 738,729.40-1,108,094.10-265,430.20

Finding the Fourth Proportional to 738,729.40, 1,108,094.10 and 265,430.20

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Solution

The fourth proportional to 738,729.40, 1,108,094.10 and 265,430.20 is: 398,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,729.40 : 1,108,094.10 = 265,430.20 : x
  2. Step 2: Convert to fraction form
    738,729.40/1,108,094.10 = 265,430.20/x
  3. Step 3: Cross multiply
    738,729.40x = 1,108,094.10 × 265,430.20
  4. Step 4: Simplify right side
    738,729.40x = 294,121,638,581.82
  5. Step 5: Solve for x
    x = 294,121,638,581.82/738,729.40
  6. Step 6: Final answer
    x = 398,145.30

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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.