Home / 921,397.98-1,382,166.95-313,997.52

Finding the Fourth Proportional to 921,397.98, 1,382,166.95 and 313,997.52

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Solution

The fourth proportional to 921,397.98, 1,382,166.95 and 313,997.52 is: 471,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,397.98 : 1,382,166.95 = 313,997.52 : x
  2. Step 2: Convert to fraction form
    921,397.98/1,382,166.95 = 313,997.52/x
  3. Step 3: Cross multiply
    921,397.98x = 1,382,166.95 × 313,997.52
  4. Step 4: Simplify right side
    921,397.98x = 433,996,992,955.98
  5. Step 5: Solve for x
    x = 433,996,992,955.98/921,397.98
  6. Step 6: Final answer
    x = 471,020.13

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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.