Home / 999,947.99-1,500,761.93-431,758.55

Finding the Fourth Proportional to 999,947.99, 1,500,761.93 and 431,758.55

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Solution

The fourth proportional to 999,947.99, 1,500,761.93 and 431,758.55 is: 648,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,947.99 : 1,500,761.93 = 431,758.55 : x
  2. Step 2: Convert to fraction form
    999,947.99/1,500,761.93 = 431,758.55/x
  3. Step 3: Cross multiply
    999,947.99x = 1,500,761.93 × 431,758.55
  4. Step 4: Simplify right side
    999,947.99x = 647,966,796,385.11
  5. Step 5: Solve for x
    x = 647,966,796,385.11/999,947.99
  6. Step 6: Final answer
    x = 648,000.50

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1.5x scale

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.