Home / 918,412.80-1,377,619.20-708,460.80

Finding the Fourth Proportional to 918,412.80, 1,377,619.20 and 708,460.80

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Solution

The fourth proportional to 918,412.80, 1,377,619.20 and 708,460.80 is: 1,062,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,412.80 : 1,377,619.20 = 708,460.80 : x
  2. Step 2: Convert to fraction form
    918,412.80/1,377,619.20 = 708,460.80/x
  3. Step 3: Cross multiply
    918,412.80x = 1,377,619.20 × 708,460.80
  4. Step 4: Simplify right side
    918,412.80x = 975,989,200,527.36
  5. Step 5: Solve for x
    x = 975,989,200,527.36/918,412.80
  6. Step 6: Final answer
    x = 1,062,691.20

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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.