Home / 578,078.10-867,117.15-578,078.10

Finding the Fourth Proportional to 578,078.10, 867,117.15 and 578,078.10

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Solution

The fourth proportional to 578,078.10, 867,117.15 and 578,078.10 is: 867,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,078.10 : 867,117.15 = 578,078.10 : x
  2. Step 2: Convert to fraction form
    578,078.10/867,117.15 = 578,078.10/x
  3. Step 3: Cross multiply
    578,078.10x = 867,117.15 × 578,078.10
  4. Step 4: Simplify right side
    578,078.10x = 501,261,434,549.42
  5. Step 5: Solve for x
    x = 501,261,434,549.42/578,078.10
  6. Step 6: Final answer
    x = 867,117.15

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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.