Home / 745,500.35-1,028,729.85-418,795.62

Finding the Fourth Proportional to 745,500.35, 1,028,729.85 and 418,795.62

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Solution

The fourth proportional to 745,500.35, 1,028,729.85 and 418,795.62 is: 577,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,500.35 : 1,028,729.85 = 418,795.62 : x
  2. Step 2: Convert to fraction form
    745,500.35/1,028,729.85 = 418,795.62/x
  3. Step 3: Cross multiply
    745,500.35x = 1,028,729.85 × 418,795.62
  4. Step 4: Simplify right side
    745,500.35x = 430,827,549,915.04
  5. Step 5: Solve for x
    x = 430,827,549,915.04/745,500.35
  6. Step 6: Final answer
    x = 577,903.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.