Home / 1,316,342.88-1,816,557.84-712,730.88

Finding the Fourth Proportional to 1,316,342.88, 1,816,557.84 and 712,730.88

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Solution

The fourth proportional to 1,316,342.88, 1,816,557.84 and 712,730.88 is: 983,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,342.88 : 1,816,557.84 = 712,730.88 : x
  2. Step 2: Convert to fraction form
    1,316,342.88/1,816,557.84 = 712,730.88/x
  3. Step 3: Cross multiply
    1,316,342.88x = 1,816,557.84 × 712,730.88
  4. Step 4: Simplify right side
    1,316,342.88x = 1,294,716,867,874.10
  5. Step 5: Solve for x
    x = 1,294,716,867,874.10/1,316,342.88
  6. Step 6: Final answer
    x = 983,571.14

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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.