Home / 731,288.74-1,009,147.66-425,365.71

Finding the Fourth Proportional to 731,288.74, 1,009,147.66 and 425,365.71

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Solution

The fourth proportional to 731,288.74, 1,009,147.66 and 425,365.71 is: 586,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,288.74 : 1,009,147.66 = 425,365.71 : x
  2. Step 2: Convert to fraction form
    731,288.74/1,009,147.66 = 425,365.71/x
  3. Step 3: Cross multiply
    731,288.74x = 1,009,147.66 × 425,365.71
  4. Step 4: Simplify right side
    731,288.74x = 429,256,809,827.32
  5. Step 5: Solve for x
    x = 429,256,809,827.32/731,288.74
  6. Step 6: Final answer
    x = 586,986.76

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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.