Home / 761,990.10-1,142,985.15-688,506.90

Finding the Fourth Proportional to 761,990.10, 1,142,985.15 and 688,506.90

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Solution

The fourth proportional to 761,990.10, 1,142,985.15 and 688,506.90 is: 1,032,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,990.10 : 1,142,985.15 = 688,506.90 : x
  2. Step 2: Convert to fraction form
    761,990.10/1,142,985.15 = 688,506.90/x
  3. Step 3: Cross multiply
    761,990.10x = 1,142,985.15 × 688,506.90
  4. Step 4: Simplify right side
    761,990.10x = 786,953,162,372.54
  5. Step 5: Solve for x
    x = 786,953,162,372.54/761,990.10
  6. Step 6: Final answer
    x = 1,032,760.35

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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.