Home / 879,280.80-1,318,921.20-564,352.80

Finding the Fourth Proportional to 879,280.80, 1,318,921.20 and 564,352.80

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Solution

The fourth proportional to 879,280.80, 1,318,921.20 and 564,352.80 is: 846,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,280.80 : 1,318,921.20 = 564,352.80 : x
  2. Step 2: Convert to fraction form
    879,280.80/1,318,921.20 = 564,352.80/x
  3. Step 3: Cross multiply
    879,280.80x = 1,318,921.20 × 564,352.80
  4. Step 4: Simplify right side
    879,280.80x = 744,336,872,199.36
  5. Step 5: Solve for x
    x = 744,336,872,199.36/879,280.80
  6. Step 6: Final answer
    x = 846,529.20

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Double scale
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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.