Home / 1,316,041.80-1,816,143.48-712,429.80

Finding the Fourth Proportional to 1,316,041.80, 1,816,143.48 and 712,429.80

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Solution

The fourth proportional to 1,316,041.80, 1,816,143.48 and 712,429.80 is: 983,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,041.80 : 1,816,143.48 = 712,429.80 : x
  2. Step 2: Convert to fraction form
    1,316,041.80/1,816,143.48 = 712,429.80/x
  3. Step 3: Cross multiply
    1,316,041.80x = 1,816,143.48 × 712,429.80
  4. Step 4: Simplify right side
    1,316,041.80x = 1,293,874,736,227.70
  5. Step 5: Solve for x
    x = 1,293,874,736,227.70/1,316,041.80
  6. Step 6: Final answer
    x = 983,156.26

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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.