Home / 690,188.01-1,035,879.90-688,592.10

Finding the Fourth Proportional to 690,188.01, 1,035,879.90 and 688,592.10

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Solution

The fourth proportional to 690,188.01, 1,035,879.90 and 688,592.10 is: 1,033,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,188.01 : 1,035,879.90 = 688,592.10 : x
  2. Step 2: Convert to fraction form
    690,188.01/1,035,879.90 = 688,592.10/x
  3. Step 3: Cross multiply
    690,188.01x = 1,035,879.90 × 688,592.10
  4. Step 4: Simplify right side
    690,188.01x = 713,298,715,688.79
  5. Step 5: Solve for x
    x = 713,298,715,688.79/690,188.01
  6. Step 6: Final answer
    x = 1,033,484.65

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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.