Home / 713,456.40-1,070,348.76-240,129.12

Finding the Fourth Proportional to 713,456.40, 1,070,348.76 and 240,129.12

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Solution

The fourth proportional to 713,456.40, 1,070,348.76 and 240,129.12 is: 360,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,456.40 : 1,070,348.76 = 240,129.12 : x
  2. Step 2: Convert to fraction form
    713,456.40/1,070,348.76 = 240,129.12/x
  3. Step 3: Cross multiply
    713,456.40x = 1,070,348.76 × 240,129.12
  4. Step 4: Simplify right side
    713,456.40x = 257,021,905,831.89
  5. Step 5: Solve for x
    x = 257,021,905,831.89/713,456.40
  6. Step 6: Final answer
    x = 360,248.93

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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.