Home / 1,260,133.60-1,890,200.40-660,863.20

Finding the Fourth Proportional to 1,260,133.60, 1,890,200.40 and 660,863.20

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Solution

The fourth proportional to 1,260,133.60, 1,890,200.40 and 660,863.20 is: 991,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,133.60 : 1,890,200.40 = 660,863.20 : x
  2. Step 2: Convert to fraction form
    1,260,133.60/1,890,200.40 = 660,863.20/x
  3. Step 3: Cross multiply
    1,260,133.60x = 1,890,200.40 × 660,863.20
  4. Step 4: Simplify right side
    1,260,133.60x = 1,249,163,884,985.28
  5. Step 5: Solve for x
    x = 1,249,163,884,985.28/1,260,133.60
  6. Step 6: Final answer
    x = 991,294.80

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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.