Home / 713,831.52-1,069,319.67-429,365.04

Finding the Fourth Proportional to 713,831.52, 1,069,319.67 and 429,365.04

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Solution

The fourth proportional to 713,831.52, 1,069,319.67 and 429,365.04 is: 643,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,831.52 : 1,069,319.67 = 429,365.04 : x
  2. Step 2: Convert to fraction form
    713,831.52/1,069,319.67 = 429,365.04/x
  3. Step 3: Cross multiply
    713,831.52x = 1,069,319.67 × 429,365.04
  4. Step 4: Simplify right side
    713,831.52x = 459,128,482,882.34
  5. Step 5: Solve for x
    x = 459,128,482,882.34/713,831.52
  6. Step 6: Final answer
    x = 643,188.86

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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.