Home / 1,098,875.70-1,648,313.55-921,728.70

Finding the Fourth Proportional to 1,098,875.70, 1,648,313.55 and 921,728.70

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Solution

The fourth proportional to 1,098,875.70, 1,648,313.55 and 921,728.70 is: 1,382,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,875.70 : 1,648,313.55 = 921,728.70 : x
  2. Step 2: Convert to fraction form
    1,098,875.70/1,648,313.55 = 921,728.70/x
  3. Step 3: Cross multiply
    1,098,875.70x = 1,648,313.55 × 921,728.70
  4. Step 4: Simplify right side
    1,098,875.70x = 1,519,297,905,633.89
  5. Step 5: Solve for x
    x = 1,519,297,905,633.89/1,098,875.70
  6. Step 6: Final answer
    x = 1,382,593.05

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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.