Home / 578,051.70-867,077.55-459,078.90

Finding the Fourth Proportional to 578,051.70, 867,077.55 and 459,078.90

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Solution

The fourth proportional to 578,051.70, 867,077.55 and 459,078.90 is: 688,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,051.70 : 867,077.55 = 459,078.90 : x
  2. Step 2: Convert to fraction form
    578,051.70/867,077.55 = 459,078.90/x
  3. Step 3: Cross multiply
    578,051.70x = 867,077.55 × 459,078.90
  4. Step 4: Simplify right side
    578,051.70x = 398,057,007,868.70
  5. Step 5: Solve for x
    x = 398,057,007,868.70/578,051.70
  6. Step 6: Final answer
    x = 688,618.35

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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.