Home / 1,098,555.40-1,648,805.10-648,713.80

Finding the Fourth Proportional to 1,098,555.40, 1,648,805.10 and 648,713.80

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Solution

The fourth proportional to 1,098,555.40, 1,648,805.10 and 648,713.80 is: 973,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,555.40 : 1,648,805.10 = 648,713.80 : x
  2. Step 2: Convert to fraction form
    1,098,555.40/1,648,805.10 = 648,713.80/x
  3. Step 3: Cross multiply
    1,098,555.40x = 1,648,805.10 × 648,713.80
  4. Step 4: Simplify right side
    1,098,555.40x = 1,069,602,621,880.38
  5. Step 5: Solve for x
    x = 1,069,602,621,880.38/1,098,555.40
  6. Step 6: Final answer
    x = 973,644.68

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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.