Home / 761,370.88-1,141,613.64-288,092.80

Finding the Fourth Proportional to 761,370.88, 1,141,613.64 and 288,092.80

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Solution

The fourth proportional to 761,370.88, 1,141,613.64 and 288,092.80 is: 431,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,370.88 : 1,141,613.64 = 288,092.80 : x
  2. Step 2: Convert to fraction form
    761,370.88/1,141,613.64 = 288,092.80/x
  3. Step 3: Cross multiply
    761,370.88x = 1,141,613.64 × 288,092.80
  4. Step 4: Simplify right side
    761,370.88x = 328,890,670,065.79
  5. Step 5: Solve for x
    x = 328,890,670,065.79/761,370.88
  6. Step 6: Final answer
    x = 431,971.70

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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.