Home / 1,098,686.70-1,648,030.05-921,539.70

Finding the Fourth Proportional to 1,098,686.70, 1,648,030.05 and 921,539.70

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Solution

The fourth proportional to 1,098,686.70, 1,648,030.05 and 921,539.70 is: 1,382,309.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,686.70 : 1,648,030.05 = 921,539.70 : x
  2. Step 2: Convert to fraction form
    1,098,686.70/1,648,030.05 = 921,539.70/x
  3. Step 3: Cross multiply
    1,098,686.70x = 1,648,030.05 × 921,539.70
  4. Step 4: Simplify right side
    1,098,686.70x = 1,518,725,117,867.99
  5. Step 5: Solve for x
    x = 1,518,725,117,867.99/1,098,686.70
  6. Step 6: Final answer
    x = 1,382,309.55

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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.