Home / 1,438,607.04-1,986,073.20-865,788

Finding the Fourth Proportional to 1,438,607.04, 1,986,073.20 and 865,788

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Solution

The fourth proportional to 1,438,607.04, 1,986,073.20 and 865,788 is: 1,195,266.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,607.04 : 1,986,073.20 = 865,788 : x
  2. Step 2: Convert to fraction form
    1,438,607.04/1,986,073.20 = 865,788/x
  3. Step 3: Cross multiply
    1,438,607.04x = 1,986,073.20 × 865,788
  4. Step 4: Simplify right side
    1,438,607.04x = 1,719,518,343,681.60
  5. Step 5: Solve for x
    x = 1,719,518,343,681.60/1,438,607.04
  6. Step 6: Final answer
    x = 1,195,266.18

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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.