Home / 1,142,247.66-1,711,569-421,597.47

Finding the Fourth Proportional to 1,142,247.66, 1,711,569 and 421,597.47

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Solution

The fourth proportional to 1,142,247.66, 1,711,569 and 421,597.47 is: 631,730.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,247.66 : 1,711,569 = 421,597.47 : x
  2. Step 2: Convert to fraction form
    1,142,247.66/1,711,569 = 421,597.47/x
  3. Step 3: Cross multiply
    1,142,247.66x = 1,711,569 × 421,597.47
  4. Step 4: Simplify right side
    1,142,247.66x = 721,593,160,130.43
  5. Step 5: Solve for x
    x = 721,593,160,130.43/1,142,247.66
  6. Step 6: Final answer
    x = 631,730.92

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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.