Home / 1,098,484.40-1,648,698.60-648,642.80

Finding the Fourth Proportional to 1,098,484.40, 1,648,698.60 and 648,642.80

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Solution

The fourth proportional to 1,098,484.40, 1,648,698.60 and 648,642.80 is: 973,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,484.40 : 1,648,698.60 = 648,642.80 : x
  2. Step 2: Convert to fraction form
    1,098,484.40/1,648,698.60 = 648,642.80/x
  3. Step 3: Cross multiply
    1,098,484.40x = 1,648,698.60 × 648,642.80
  4. Step 4: Simplify right side
    1,098,484.40x = 1,069,416,476,260.08
  5. Step 5: Solve for x
    x = 1,069,416,476,260.08/1,098,484.40
  6. Step 6: Final answer
    x = 973,538.16

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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.