Home / 788,586.82-1,088,223.78-498,353.47

Finding the Fourth Proportional to 788,586.82, 1,088,223.78 and 498,353.47

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Solution

The fourth proportional to 788,586.82, 1,088,223.78 and 498,353.47 is: 687,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,586.82 : 1,088,223.78 = 498,353.47 : x
  2. Step 2: Convert to fraction form
    788,586.82/1,088,223.78 = 498,353.47/x
  3. Step 3: Cross multiply
    788,586.82x = 1,088,223.78 × 498,353.47
  4. Step 4: Simplify right side
    788,586.82x = 542,320,096,899.52
  5. Step 5: Solve for x
    x = 542,320,096,899.52/788,586.82
  6. Step 6: Final answer
    x = 687,711.34

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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.