Home / 761,439.80-1,142,159.70-698,454.20

Finding the Fourth Proportional to 761,439.80, 1,142,159.70 and 698,454.20

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Solution

The fourth proportional to 761,439.80, 1,142,159.70 and 698,454.20 is: 1,047,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,439.80 : 1,142,159.70 = 698,454.20 : x
  2. Step 2: Convert to fraction form
    761,439.80/1,142,159.70 = 698,454.20/x
  3. Step 3: Cross multiply
    761,439.80x = 1,142,159.70 × 698,454.20
  4. Step 4: Simplify right side
    761,439.80x = 797,746,239,535.74
  5. Step 5: Solve for x
    x = 797,746,239,535.74/761,439.80
  6. Step 6: Final answer
    x = 1,047,681.30

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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.