Home / 1,287,802.08-1,777,153.68-714,827.52

Finding the Fourth Proportional to 1,287,802.08, 1,777,153.68 and 714,827.52

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Solution

The fourth proportional to 1,287,802.08, 1,777,153.68 and 714,827.52 is: 986,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,802.08 : 1,777,153.68 = 714,827.52 : x
  2. Step 2: Convert to fraction form
    1,287,802.08/1,777,153.68 = 714,827.52/x
  3. Step 3: Cross multiply
    1,287,802.08x = 1,777,153.68 × 714,827.52
  4. Step 4: Simplify right side
    1,287,802.08x = 1,270,358,357,733.27
  5. Step 5: Solve for x
    x = 1,270,358,357,733.27/1,287,802.08
  6. Step 6: Final answer
    x = 986,454.66

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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.