Home / 989,724.30-1,484,586.45-877,531.20

Finding the Fourth Proportional to 989,724.30, 1,484,586.45 and 877,531.20

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Solution

The fourth proportional to 989,724.30, 1,484,586.45 and 877,531.20 is: 1,316,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,724.30 : 1,484,586.45 = 877,531.20 : x
  2. Step 2: Convert to fraction form
    989,724.30/1,484,586.45 = 877,531.20/x
  3. Step 3: Cross multiply
    989,724.30x = 1,484,586.45 × 877,531.20
  4. Step 4: Simplify right side
    989,724.30x = 1,302,770,928,972.24
  5. Step 5: Solve for x
    x = 1,302,770,928,972.24/989,724.30
  6. Step 6: Final answer
    x = 1,316,296.80

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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.