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Finding the Fourth Proportional to 615,382.86, 849,226.50 and 343,447.77

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Solution

The fourth proportional to 615,382.86, 849,226.50 and 343,447.77 is: 473,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,382.86 : 849,226.50 = 343,447.77 : x
  2. Step 2: Convert to fraction form
    615,382.86/849,226.50 = 343,447.77/x
  3. Step 3: Cross multiply
    615,382.86x = 849,226.50 × 343,447.77
  4. Step 4: Simplify right side
    615,382.86x = 291,664,947,649.91
  5. Step 5: Solve for x
    x = 291,664,947,649.91/615,382.86
  6. Step 6: Final answer
    x = 473,956.89

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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.