Home / 649,047.43-895,680.55-358,678.58

Finding the Fourth Proportional to 649,047.43, 895,680.55 and 358,678.58

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Solution

The fourth proportional to 649,047.43, 895,680.55 and 358,678.58 is: 494,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,047.43 : 895,680.55 = 358,678.58 : x
  2. Step 2: Convert to fraction form
    649,047.43/895,680.55 = 358,678.58/x
  3. Step 3: Cross multiply
    649,047.43x = 895,680.55 × 358,678.58
  4. Step 4: Simplify right side
    649,047.43x = 321,261,423,777.57
  5. Step 5: Solve for x
    x = 321,261,423,777.57/649,047.43
  6. Step 6: Final answer
    x = 494,973.72

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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.