Home / 761,566.10-1,142,786.55-288,590.90

Finding the Fourth Proportional to 761,566.10, 1,142,786.55 and 288,590.90

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Solution

The fourth proportional to 761,566.10, 1,142,786.55 and 288,590.90 is: 433,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,566.10 : 1,142,786.55 = 288,590.90 : x
  2. Step 2: Convert to fraction form
    761,566.10/1,142,786.55 = 288,590.90/x
  3. Step 3: Cross multiply
    761,566.10x = 1,142,786.55 × 288,590.90
  4. Step 4: Simplify right side
    761,566.10x = 329,797,798,972.40
  5. Step 5: Solve for x
    x = 329,797,798,972.40/761,566.10
  6. Step 6: Final answer
    x = 433,052.10

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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.