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Finding the Fourth Proportional to 615,700.13, 849,658.13 and 343,772.65

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Solution

The fourth proportional to 615,700.13, 849,658.13 and 343,772.65 is: 474,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,700.13 : 849,658.13 = 343,772.65 : x
  2. Step 2: Convert to fraction form
    615,700.13/849,658.13 = 343,772.65/x
  3. Step 3: Cross multiply
    615,700.13x = 849,658.13 × 343,772.65
  4. Step 4: Simplify right side
    615,700.13x = 292,089,223,101.14
  5. Step 5: Solve for x
    x = 292,089,223,101.14/615,700.13
  6. Step 6: Final answer
    x = 474,401.76

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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.