Home / 1,152,649.12-1,590,590.94-643,384.24

Finding the Fourth Proportional to 1,152,649.12, 1,590,590.94 and 643,384.24

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Solution

The fourth proportional to 1,152,649.12, 1,590,590.94 and 643,384.24 is: 887,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,649.12 : 1,590,590.94 = 643,384.24 : x
  2. Step 2: Convert to fraction form
    1,152,649.12/1,590,590.94 = 643,384.24/x
  3. Step 3: Cross multiply
    1,152,649.12x = 1,590,590.94 × 643,384.24
  4. Step 4: Simplify right side
    1,152,649.12x = 1,023,361,143,082.79
  5. Step 5: Solve for x
    x = 1,023,361,143,082.79/1,152,649.12
  6. Step 6: Final answer
    x = 887,834.06

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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.