Home / 752,636.69-1,038,646.40-408,475.59

Finding the Fourth Proportional to 752,636.69, 1,038,646.40 and 408,475.59

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Solution

The fourth proportional to 752,636.69, 1,038,646.40 and 408,475.59 is: 563,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,636.69 : 1,038,646.40 = 408,475.59 : x
  2. Step 2: Convert to fraction form
    752,636.69/1,038,646.40 = 408,475.59/x
  3. Step 3: Cross multiply
    752,636.69x = 1,038,646.40 × 408,475.59
  4. Step 4: Simplify right side
    752,636.69x = 424,261,700,946.46
  5. Step 5: Solve for x
    x = 424,261,700,946.46/752,636.69
  6. Step 6: Final answer
    x = 563,700.53

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Double scale
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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.