Home / 613,096.20-918,707.40-257,915.52

Finding the Fourth Proportional to 613,096.20, 918,707.40 and 257,915.52

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Solution

The fourth proportional to 613,096.20, 918,707.40 and 257,915.52 is: 386,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,096.20 : 918,707.40 = 257,915.52 : x
  2. Step 2: Convert to fraction form
    613,096.20/918,707.40 = 257,915.52/x
  3. Step 3: Cross multiply
    613,096.20x = 918,707.40 × 257,915.52
  4. Step 4: Simplify right side
    613,096.20x = 236,948,896,798.85
  5. Step 5: Solve for x
    x = 236,948,896,798.85/613,096.20
  6. Step 6: Final answer
    x = 386,479.15

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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.