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Finding the Fourth Proportional to 615,071.80, 922,866.90 and 334,790.20

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Solution

The fourth proportional to 615,071.80, 922,866.90 and 334,790.20 is: 502,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,071.80 : 922,866.90 = 334,790.20 : x
  2. Step 2: Convert to fraction form
    615,071.80/922,866.90 = 334,790.20/x
  3. Step 3: Cross multiply
    615,071.80x = 922,866.90 × 334,790.20
  4. Step 4: Simplify right side
    615,071.80x = 308,966,794,024.38
  5. Step 5: Solve for x
    x = 308,966,794,024.38/615,071.80
  6. Step 6: Final answer
    x = 502,326.39

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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.