Home / 761,966.92-1,142,870.16-312,735.24

Finding the Fourth Proportional to 761,966.92, 1,142,870.16 and 312,735.24

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Solution

The fourth proportional to 761,966.92, 1,142,870.16 and 312,735.24 is: 469,069.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,966.92 : 1,142,870.16 = 312,735.24 : x
  2. Step 2: Convert to fraction form
    761,966.92/1,142,870.16 = 312,735.24/x
  3. Step 3: Cross multiply
    761,966.92x = 1,142,870.16 × 312,735.24
  4. Step 4: Simplify right side
    761,966.92x = 357,415,773,776.44
  5. Step 5: Solve for x
    x = 357,415,773,776.44/761,966.92
  6. Step 6: Final answer
    x = 469,069.94

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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.