Home / 912,270.60-1,258,930.24-509,862.60

Finding the Fourth Proportional to 912,270.60, 1,258,930.24 and 509,862.60

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Solution

The fourth proportional to 912,270.60, 1,258,930.24 and 509,862.60 is: 703,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,270.60 : 1,258,930.24 = 509,862.60 : x
  2. Step 2: Convert to fraction form
    912,270.60/1,258,930.24 = 509,862.60/x
  3. Step 3: Cross multiply
    912,270.60x = 1,258,930.24 × 509,862.60
  4. Step 4: Simplify right side
    912,270.60x = 641,881,445,385.02
  5. Step 5: Solve for x
    x = 641,881,445,385.02/912,270.60
  6. Step 6: Final answer
    x = 703,608.61

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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.