Home / 1,118,532.60-1,678,684.62-487,889.28

Finding the Fourth Proportional to 1,118,532.60, 1,678,684.62 and 487,889.28

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Solution

The fourth proportional to 1,118,532.60, 1,678,684.62 and 487,889.28 is: 732,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,532.60 : 1,678,684.62 = 487,889.28 : x
  2. Step 2: Convert to fraction form
    1,118,532.60/1,678,684.62 = 487,889.28/x
  3. Step 3: Cross multiply
    1,118,532.60x = 1,678,684.62 × 487,889.28
  4. Step 4: Simplify right side
    1,118,532.60x = 819,012,230,598.87
  5. Step 5: Solve for x
    x = 819,012,230,598.87/1,118,532.60
  6. Step 6: Final answer
    x = 732,220.26

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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.