Home / 771,498.30-1,156,242.13-429,928.11

Finding the Fourth Proportional to 771,498.30, 1,156,242.13 and 429,928.11

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Solution

The fourth proportional to 771,498.30, 1,156,242.13 and 429,928.11 is: 644,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,498.30 : 1,156,242.13 = 429,928.11 : x
  2. Step 2: Convert to fraction form
    771,498.30/1,156,242.13 = 429,928.11/x
  3. Step 3: Cross multiply
    771,498.30x = 1,156,242.13 × 429,928.11
  4. Step 4: Simplify right side
    771,498.30x = 497,100,993,653.27
  5. Step 5: Solve for x
    x = 497,100,993,653.27/771,498.30
  6. Step 6: Final answer
    x = 644,331.94

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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.