Home / 578,020.60-867,030.90-329,188.60

Finding the Fourth Proportional to 578,020.60, 867,030.90 and 329,188.60

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Solution

The fourth proportional to 578,020.60, 867,030.90 and 329,188.60 is: 493,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,020.60 : 867,030.90 = 329,188.60 : x
  2. Step 2: Convert to fraction form
    578,020.60/867,030.90 = 329,188.60/x
  3. Step 3: Cross multiply
    578,020.60x = 867,030.90 × 329,188.60
  4. Step 4: Simplify right side
    578,020.60x = 285,416,688,127.74
  5. Step 5: Solve for x
    x = 285,416,688,127.74/578,020.60
  6. Step 6: Final answer
    x = 493,782.90

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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.