Home / 905,489.72-1,249,303.32-542,781.24

Finding the Fourth Proportional to 905,489.72, 1,249,303.32 and 542,781.24

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Solution

The fourth proportional to 905,489.72, 1,249,303.32 and 542,781.24 is: 748,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,489.72 : 1,249,303.32 = 542,781.24 : x
  2. Step 2: Convert to fraction form
    905,489.72/1,249,303.32 = 542,781.24/x
  3. Step 3: Cross multiply
    905,489.72x = 1,249,303.32 × 542,781.24
  4. Step 4: Simplify right side
    905,489.72x = 678,098,405,165.72
  5. Step 5: Solve for x
    x = 678,098,405,165.72/905,489.72
  6. Step 6: Final answer
    x = 748,874.77

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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.