Home / 790,640.12-1,091,070.13-428,061.04

Finding the Fourth Proportional to 790,640.12, 1,091,070.13 and 428,061.04

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Solution

The fourth proportional to 790,640.12, 1,091,070.13 and 428,061.04 is: 590,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,640.12 : 1,091,070.13 = 428,061.04 : x
  2. Step 2: Convert to fraction form
    790,640.12/1,091,070.13 = 428,061.04/x
  3. Step 3: Cross multiply
    790,640.12x = 1,091,070.13 × 428,061.04
  4. Step 4: Simplify right side
    790,640.12x = 467,044,614,560.74
  5. Step 5: Solve for x
    x = 467,044,614,560.74/790,640.12
  6. Step 6: Final answer
    x = 590,717.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.