Home / 731,447.40-1,009,600.28-425,582.86

Finding the Fourth Proportional to 731,447.40, 1,009,600.28 and 425,582.86

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Solution

The fourth proportional to 731,447.40, 1,009,600.28 and 425,582.86 is: 587,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,447.40 : 1,009,600.28 = 425,582.86 : x
  2. Step 2: Convert to fraction form
    731,447.40/1,009,600.28 = 425,582.86/x
  3. Step 3: Cross multiply
    731,447.40x = 1,009,600.28 × 425,582.86
  4. Step 4: Simplify right side
    731,447.40x = 429,668,574,619.20
  5. Step 5: Solve for x
    x = 429,668,574,619.20/731,447.40
  6. Step 6: Final answer
    x = 587,422.38

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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.