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Finding the Fourth Proportional to 615,506.52, 849,395.76 and 357,446.92

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Solution

The fourth proportional to 615,506.52, 849,395.76 and 357,446.92 is: 493,274.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,506.52 : 849,395.76 = 357,446.92 : x
  2. Step 2: Convert to fraction form
    615,506.52/849,395.76 = 357,446.92/x
  3. Step 3: Cross multiply
    615,506.52x = 849,395.76 × 357,446.92
  4. Step 4: Simplify right side
    615,506.52x = 303,613,898,273.06
  5. Step 5: Solve for x
    x = 303,613,898,273.06/615,506.52
  6. Step 6: Final answer
    x = 493,274.87

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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.