Home / 578,438.72-867,336.20-178,966.16

Finding the Fourth Proportional to 578,438.72, 867,336.20 and 178,966.16

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Solution

The fourth proportional to 578,438.72, 867,336.20 and 178,966.16 is: 268,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,438.72 : 867,336.20 = 178,966.16 : x
  2. Step 2: Convert to fraction form
    578,438.72/867,336.20 = 178,966.16/x
  3. Step 3: Cross multiply
    578,438.72x = 867,336.20 × 178,966.16
  4. Step 4: Simplify right side
    578,438.72x = 155,223,829,142.99
  5. Step 5: Solve for x
    x = 155,223,829,142.99/578,438.72
  6. Step 6: Final answer
    x = 268,349.65

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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.