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Finding the Fourth Proportional to 672,325.47, 927,809.15 and 370,519.47

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Solution

The fourth proportional to 672,325.47, 927,809.15 and 370,519.47 is: 511,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,325.47 : 927,809.15 = 370,519.47 : x
  2. Step 2: Convert to fraction form
    672,325.47/927,809.15 = 370,519.47/x
  3. Step 3: Cross multiply
    672,325.47x = 927,809.15 × 370,519.47
  4. Step 4: Simplify right side
    672,325.47x = 343,771,352,666.55
  5. Step 5: Solve for x
    x = 343,771,352,666.55/672,325.47
  6. Step 6: Final answer
    x = 511,316.87

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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.