Home / 765,281.79-1,055,969.46-442,928.93

Finding the Fourth Proportional to 765,281.79, 1,055,969.46 and 442,928.93

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Solution

The fourth proportional to 765,281.79, 1,055,969.46 and 442,928.93 is: 611,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,281.79 : 1,055,969.46 = 442,928.93 : x
  2. Step 2: Convert to fraction form
    765,281.79/1,055,969.46 = 442,928.93/x
  3. Step 3: Cross multiply
    765,281.79x = 1,055,969.46 × 442,928.93
  4. Step 4: Simplify right side
    765,281.79x = 467,719,417,750.63
  5. Step 5: Solve for x
    x = 467,719,417,750.63/765,281.79
  6. Step 6: Final answer
    x = 611,172.80

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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.