Home / 578,005.60-867,008.40-365,429.20

Finding the Fourth Proportional to 578,005.60, 867,008.40 and 365,429.20

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Solution

The fourth proportional to 578,005.60, 867,008.40 and 365,429.20 is: 548,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,005.60 : 867,008.40 = 365,429.20 : x
  2. Step 2: Convert to fraction form
    578,005.60/867,008.40 = 365,429.20/x
  3. Step 3: Cross multiply
    578,005.60x = 867,008.40 × 365,429.20
  4. Step 4: Simplify right side
    578,005.60x = 316,830,186,005.28
  5. Step 5: Solve for x
    x = 316,830,186,005.28/578,005.60
  6. Step 6: Final answer
    x = 548,143.80

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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.