Home / 711,767.81-1,067,651.71-312,412.04

Finding the Fourth Proportional to 711,767.81, 1,067,651.71 and 312,412.04

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Solution

The fourth proportional to 711,767.81, 1,067,651.71 and 312,412.04 is: 468,618.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,767.81 : 1,067,651.71 = 312,412.04 : x
  2. Step 2: Convert to fraction form
    711,767.81/1,067,651.71 = 312,412.04/x
  3. Step 3: Cross multiply
    711,767.81x = 1,067,651.71 × 312,412.04
  4. Step 4: Simplify right side
    711,767.81x = 333,547,248,730.59
  5. Step 5: Solve for x
    x = 333,547,248,730.59/711,767.81
  6. Step 6: Final answer
    x = 468,618.06

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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.