Home / 553,294.20-829,941.30-520,051.80

Finding the Fourth Proportional to 553,294.20, 829,941.30 and 520,051.80

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Solution

The fourth proportional to 553,294.20, 829,941.30 and 520,051.80 is: 780,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,294.20 : 829,941.30 = 520,051.80 : x
  2. Step 2: Convert to fraction form
    553,294.20/829,941.30 = 520,051.80/x
  3. Step 3: Cross multiply
    553,294.20x = 829,941.30 × 520,051.80
  4. Step 4: Simplify right side
    553,294.20x = 431,612,466,959.34
  5. Step 5: Solve for x
    x = 431,612,466,959.34/553,294.20
  6. Step 6: Final answer
    x = 780,077.70

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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.