Home / 817,263.88-1,127,979.48-511,482.40

Finding the Fourth Proportional to 817,263.88, 1,127,979.48 and 511,482.40

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Solution

The fourth proportional to 817,263.88, 1,127,979.48 and 511,482.40 is: 705,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,263.88 : 1,127,979.48 = 511,482.40 : x
  2. Step 2: Convert to fraction form
    817,263.88/1,127,979.48 = 511,482.40/x
  3. Step 3: Cross multiply
    817,263.88x = 1,127,979.48 × 511,482.40
  4. Step 4: Simplify right side
    817,263.88x = 576,941,651,581.15
  5. Step 5: Solve for x
    x = 576,941,651,581.15/817,263.88
  6. Step 6: Final answer
    x = 705,942.92

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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.