Home / 895,376.83-1,235,620.21-487,478.70

Finding the Fourth Proportional to 895,376.83, 1,235,620.21 and 487,478.70

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Solution

The fourth proportional to 895,376.83, 1,235,620.21 and 487,478.70 is: 672,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,376.83 : 1,235,620.21 = 487,478.70 : x
  2. Step 2: Convert to fraction form
    895,376.83/1,235,620.21 = 487,478.70/x
  3. Step 3: Cross multiply
    895,376.83x = 1,235,620.21 × 487,478.70
  4. Step 4: Simplify right side
    895,376.83x = 602,338,533,664.53
  5. Step 5: Solve for x
    x = 602,338,533,664.53/895,376.83
  6. Step 6: Final answer
    x = 672,720.71

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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.