Home / 977,978.76-1,350,052.83-615,934.68

Finding the Fourth Proportional to 977,978.76, 1,350,052.83 and 615,934.68

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Solution

The fourth proportional to 977,978.76, 1,350,052.83 and 615,934.68 is: 850,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,978.76 : 1,350,052.83 = 615,934.68 : x
  2. Step 2: Convert to fraction form
    977,978.76/1,350,052.83 = 615,934.68/x
  3. Step 3: Cross multiply
    977,978.76x = 1,350,052.83 × 615,934.68
  4. Step 4: Simplify right side
    977,978.76x = 831,544,357,829.15
  5. Step 5: Solve for x
    x = 831,544,357,829.15/977,978.76
  6. Step 6: Final answer
    x = 850,268.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.