Home / 1,152,646.12-1,590,586.80-643,381.24

Finding the Fourth Proportional to 1,152,646.12, 1,590,586.80 and 643,381.24

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Solution

The fourth proportional to 1,152,646.12, 1,590,586.80 and 643,381.24 is: 887,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,646.12 : 1,590,586.80 = 643,381.24 : x
  2. Step 2: Convert to fraction form
    1,152,646.12/1,590,586.80 = 643,381.24/x
  3. Step 3: Cross multiply
    1,152,646.12x = 1,590,586.80 × 643,381.24
  4. Step 4: Simplify right side
    1,152,646.12x = 1,023,353,707,711.63
  5. Step 5: Solve for x
    x = 1,023,353,707,711.63/1,152,646.12
  6. Step 6: Final answer
    x = 887,829.92

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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.