Home / 781,665.73-1,172,583.56-249,061.57

Finding the Fourth Proportional to 781,665.73, 1,172,583.56 and 249,061.57

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Solution

The fourth proportional to 781,665.73, 1,172,583.56 and 249,061.57 is: 373,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,665.73 : 1,172,583.56 = 249,061.57 : x
  2. Step 2: Convert to fraction form
    781,665.73/1,172,583.56 = 249,061.57/x
  3. Step 3: Cross multiply
    781,665.73x = 1,172,583.56 × 249,061.57
  4. Step 4: Simplify right side
    781,665.73x = 292,045,502,409.79
  5. Step 5: Solve for x
    x = 292,045,502,409.79/781,665.73
  6. Step 6: Final answer
    x = 373,619.43

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.