Home / 789,008.18-1,088,828.72-426,430.92

Finding the Fourth Proportional to 789,008.18, 1,088,828.72 and 426,430.92

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Solution

The fourth proportional to 789,008.18, 1,088,828.72 and 426,430.92 is: 588,473.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,008.18 : 1,088,828.72 = 426,430.92 : x
  2. Step 2: Convert to fraction form
    789,008.18/1,088,828.72 = 426,430.92/x
  3. Step 3: Cross multiply
    789,008.18x = 1,088,828.72 × 426,430.92
  4. Step 4: Simplify right side
    789,008.18x = 464,310,232,792.02
  5. Step 5: Solve for x
    x = 464,310,232,792.02/789,008.18
  6. Step 6: Final answer
    x = 588,473.28

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.