Home / 817,151.16-1,225,722.63-209,938.82

Finding the Fourth Proportional to 817,151.16, 1,225,722.63 and 209,938.82

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Solution

The fourth proportional to 817,151.16, 1,225,722.63 and 209,938.82 is: 314,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,151.16 : 1,225,722.63 = 209,938.82 : x
  2. Step 2: Convert to fraction form
    817,151.16/1,225,722.63 = 209,938.82/x
  3. Step 3: Cross multiply
    817,151.16x = 1,225,722.63 × 209,938.82
  4. Step 4: Simplify right side
    817,151.16x = 257,326,756,460.88
  5. Step 5: Solve for x
    x = 257,326,756,460.88/817,151.16
  6. Step 6: Final answer
    x = 314,907.17

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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.