Home / 861,777.18-1,189,252.50-499,271.10

Finding the Fourth Proportional to 861,777.18, 1,189,252.50 and 499,271.10

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Solution

The fourth proportional to 861,777.18, 1,189,252.50 and 499,271.10 is: 688,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,777.18 : 1,189,252.50 = 499,271.10 : x
  2. Step 2: Convert to fraction form
    861,777.18/1,189,252.50 = 499,271.10/x
  3. Step 3: Cross multiply
    861,777.18x = 1,189,252.50 × 499,271.10
  4. Step 4: Simplify right side
    861,777.18x = 593,759,403,852.75
  5. Step 5: Solve for x
    x = 593,759,403,852.75/861,777.18
  6. Step 6: Final answer
    x = 688,994.11

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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.