Home / 771,497.30-1,156,240.63-429,927.11

Finding the Fourth Proportional to 771,497.30, 1,156,240.63 and 429,927.11

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Solution

The fourth proportional to 771,497.30, 1,156,240.63 and 429,927.11 is: 644,330.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,497.30 : 1,156,240.63 = 429,927.11 : x
  2. Step 2: Convert to fraction form
    771,497.30/1,156,240.63 = 429,927.11/x
  3. Step 3: Cross multiply
    771,497.30x = 1,156,240.63 × 429,927.11
  4. Step 4: Simplify right side
    771,497.30x = 497,099,191,612.59
  5. Step 5: Solve for x
    x = 497,099,191,612.59/771,497.30
  6. Step 6: Final answer
    x = 644,330.44

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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.