Home / 864,681.60-1,193,280.48-542,405.28

Finding the Fourth Proportional to 864,681.60, 1,193,280.48 and 542,405.28

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Solution

The fourth proportional to 864,681.60, 1,193,280.48 and 542,405.28 is: 748,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,681.60 : 1,193,280.48 = 542,405.28 : x
  2. Step 2: Convert to fraction form
    864,681.60/1,193,280.48 = 542,405.28/x
  3. Step 3: Cross multiply
    864,681.60x = 1,193,280.48 × 542,405.28
  4. Step 4: Simplify right side
    864,681.60x = 647,241,632,872.94
  5. Step 5: Solve for x
    x = 647,241,632,872.94/864,681.60
  6. Step 6: Final answer
    x = 748,531.75

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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.