Home / 1,299,425.40-1,947,582.90-668,014.20

Finding the Fourth Proportional to 1,299,425.40, 1,947,582.90 and 668,014.20

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Solution

The fourth proportional to 1,299,425.40, 1,947,582.90 and 668,014.20 is: 1,001,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,425.40 : 1,947,582.90 = 668,014.20 : x
  2. Step 2: Convert to fraction form
    1,299,425.40/1,947,582.90 = 668,014.20/x
  3. Step 3: Cross multiply
    1,299,425.40x = 1,947,582.90 × 668,014.20
  4. Step 4: Simplify right side
    1,299,425.40x = 1,301,013,032,877.18
  5. Step 5: Solve for x
    x = 1,301,013,032,877.18/1,299,425.40
  6. Step 6: Final answer
    x = 1,001,221.80

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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.