Home / 863,132.10-1,294,698.15-390,740.10

Finding the Fourth Proportional to 863,132.10, 1,294,698.15 and 390,740.10

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Solution

The fourth proportional to 863,132.10, 1,294,698.15 and 390,740.10 is: 586,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,132.10 : 1,294,698.15 = 390,740.10 : x
  2. Step 2: Convert to fraction form
    863,132.10/1,294,698.15 = 390,740.10/x
  3. Step 3: Cross multiply
    863,132.10x = 1,294,698.15 × 390,740.10
  4. Step 4: Simplify right side
    863,132.10x = 505,890,484,600.82
  5. Step 5: Solve for x
    x = 505,890,484,600.82/863,132.10
  6. Step 6: Final answer
    x = 586,110.15

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Similar ratio
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1.5x scale

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.