Home / 989,840.70-1,484,761.05-691,242.30

Finding the Fourth Proportional to 989,840.70, 1,484,761.05 and 691,242.30

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Solution

The fourth proportional to 989,840.70, 1,484,761.05 and 691,242.30 is: 1,036,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,840.70 : 1,484,761.05 = 691,242.30 : x
  2. Step 2: Convert to fraction form
    989,840.70/1,484,761.05 = 691,242.30/x
  3. Step 3: Cross multiply
    989,840.70x = 1,484,761.05 × 691,242.30
  4. Step 4: Simplify right side
    989,840.70x = 1,026,329,643,152.42
  5. Step 5: Solve for x
    x = 1,026,329,643,152.42/989,840.70
  6. Step 6: Final answer
    x = 1,036,863.45

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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.