Home / 553,318.20-829,977.30-520,075.80

Finding the Fourth Proportional to 553,318.20, 829,977.30 and 520,075.80

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Solution

The fourth proportional to 553,318.20, 829,977.30 and 520,075.80 is: 780,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,318.20 : 829,977.30 = 520,075.80 : x
  2. Step 2: Convert to fraction form
    553,318.20/829,977.30 = 520,075.80/x
  3. Step 3: Cross multiply
    553,318.20x = 829,977.30 × 520,075.80
  4. Step 4: Simplify right side
    553,318.20x = 431,651,108,279.34
  5. Step 5: Solve for x
    x = 431,651,108,279.34/553,318.20
  6. Step 6: Final answer
    x = 780,113.70

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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.