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Finding the Fourth Proportional to 611,663.04, 916,459.20 and 374,510.52

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Solution

The fourth proportional to 611,663.04, 916,459.20 and 374,510.52 is: 561,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,663.04 : 916,459.20 = 374,510.52 : x
  2. Step 2: Convert to fraction form
    611,663.04/916,459.20 = 374,510.52/x
  3. Step 3: Cross multiply
    611,663.04x = 916,459.20 × 374,510.52
  4. Step 4: Simplify right side
    611,663.04x = 343,223,611,550.78
  5. Step 5: Solve for x
    x = 343,223,611,550.78/611,663.04
  6. Step 6: Final answer
    x = 561,131.85

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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.