Home / 918,590.70-1,267,653.42-510,730.20

Finding the Fourth Proportional to 918,590.70, 1,267,653.42 and 510,730.20

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Solution

The fourth proportional to 918,590.70, 1,267,653.42 and 510,730.20 is: 704,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,590.70 : 1,267,653.42 = 510,730.20 : x
  2. Step 2: Convert to fraction form
    918,590.70/1,267,653.42 = 510,730.20/x
  3. Step 3: Cross multiply
    918,590.70x = 1,267,653.42 × 510,730.20
  4. Step 4: Simplify right side
    918,590.70x = 647,428,884,727.28
  5. Step 5: Solve for x
    x = 647,428,884,727.28/918,590.70
  6. Step 6: Final answer
    x = 704,806.71

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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.