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Finding the Fourth Proportional to 487,292.48, 730,754.40 and 206,941.76

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Solution

The fourth proportional to 487,292.48, 730,754.40 and 206,941.76 is: 310,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,292.48 : 730,754.40 = 206,941.76 : x
  2. Step 2: Convert to fraction form
    487,292.48/730,754.40 = 206,941.76/x
  3. Step 3: Cross multiply
    487,292.48x = 730,754.40 × 206,941.76
  4. Step 4: Simplify right side
    487,292.48x = 151,223,601,663.74
  5. Step 5: Solve for x
    x = 151,223,601,663.74/487,292.48
  6. Step 6: Final answer
    x = 310,334.36

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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.