Home / 1,316,041.30-1,816,142.79-712,429.30

Finding the Fourth Proportional to 1,316,041.30, 1,816,142.79 and 712,429.30

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Solution

The fourth proportional to 1,316,041.30, 1,816,142.79 and 712,429.30 is: 983,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,041.30 : 1,816,142.79 = 712,429.30 : x
  2. Step 2: Convert to fraction form
    1,316,041.30/1,816,142.79 = 712,429.30/x
  3. Step 3: Cross multiply
    1,316,041.30x = 1,816,142.79 × 712,429.30
  4. Step 4: Simplify right side
    1,316,041.30x = 1,293,873,336,579.75
  5. Step 5: Solve for x
    x = 1,293,873,336,579.75/1,316,041.30
  6. Step 6: Final answer
    x = 983,155.57

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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.