Home / 838,002.18-1,156,440.87-456,028.86

Finding the Fourth Proportional to 838,002.18, 1,156,440.87 and 456,028.86

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Solution

The fourth proportional to 838,002.18, 1,156,440.87 and 456,028.86 is: 629,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,002.18 : 1,156,440.87 = 456,028.86 : x
  2. Step 2: Convert to fraction form
    838,002.18/1,156,440.87 = 456,028.86/x
  3. Step 3: Cross multiply
    838,002.18x = 1,156,440.87 × 456,028.86
  4. Step 4: Simplify right side
    838,002.18x = 527,370,411,603.51
  5. Step 5: Solve for x
    x = 527,370,411,603.51/838,002.18
  6. Step 6: Final answer
    x = 629,318.66

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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.