Home / 761,573.16-1,142,359.74-387,858.60

Finding the Fourth Proportional to 761,573.16, 1,142,359.74 and 387,858.60

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Solution

The fourth proportional to 761,573.16, 1,142,359.74 and 387,858.60 is: 581,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,573.16 : 1,142,359.74 = 387,858.60 : x
  2. Step 2: Convert to fraction form
    761,573.16/1,142,359.74 = 387,858.60/x
  3. Step 3: Cross multiply
    761,573.16x = 1,142,359.74 × 387,858.60
  4. Step 4: Simplify right side
    761,573.16x = 443,074,049,452.76
  5. Step 5: Solve for x
    x = 443,074,049,452.76/761,573.16
  6. Step 6: Final answer
    x = 581,787.90

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1.5x scale

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.