Home / 887,619.20-1,331,428.80-745,901.60

Finding the Fourth Proportional to 887,619.20, 1,331,428.80 and 745,901.60

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Solution

The fourth proportional to 887,619.20, 1,331,428.80 and 745,901.60 is: 1,118,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,619.20 : 1,331,428.80 = 745,901.60 : x
  2. Step 2: Convert to fraction form
    887,619.20/1,331,428.80 = 745,901.60/x
  3. Step 3: Cross multiply
    887,619.20x = 1,331,428.80 × 745,901.60
  4. Step 4: Simplify right side
    887,619.20x = 993,114,872,206.08
  5. Step 5: Solve for x
    x = 993,114,872,206.08/887,619.20
  6. Step 6: Final answer
    x = 1,118,852.40

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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.