Home / 545,280.60-752,480.10-315,869.16

Finding the Fourth Proportional to 545,280.60, 752,480.10 and 315,869.16

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Solution

The fourth proportional to 545,280.60, 752,480.10 and 315,869.16 is: 435,895.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,280.60 : 752,480.10 = 315,869.16 : x
  2. Step 2: Convert to fraction form
    545,280.60/752,480.10 = 315,869.16/x
  3. Step 3: Cross multiply
    545,280.60x = 752,480.10 × 315,869.16
  4. Step 4: Simplify right side
    545,280.60x = 237,685,257,103.72
  5. Step 5: Solve for x
    x = 237,685,257,103.72/545,280.60
  6. Step 6: Final answer
    x = 435,895.31

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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.