Home / 761,574.16-1,142,361.24-387,859.60

Finding the Fourth Proportional to 761,574.16, 1,142,361.24 and 387,859.60

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Solution

The fourth proportional to 761,574.16, 1,142,361.24 and 387,859.60 is: 581,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,574.16 : 1,142,361.24 = 387,859.60 : x
  2. Step 2: Convert to fraction form
    761,574.16/1,142,361.24 = 387,859.60/x
  3. Step 3: Cross multiply
    761,574.16x = 1,142,361.24 × 387,859.60
  4. Step 4: Simplify right side
    761,574.16x = 443,075,773,601.90
  5. Step 5: Solve for x
    x = 443,075,773,601.90/761,574.16
  6. Step 6: Final answer
    x = 581,789.40

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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.