Home / 1,287,930.23-1,777,254.64-714,925.29

Finding the Fourth Proportional to 1,287,930.23, 1,777,254.64 and 714,925.29

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Solution

The fourth proportional to 1,287,930.23, 1,777,254.64 and 714,925.29 is: 986,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,930.23 : 1,777,254.64 = 714,925.29 : x
  2. Step 2: Convert to fraction form
    1,287,930.23/1,777,254.64 = 714,925.29/x
  3. Step 3: Cross multiply
    1,287,930.23x = 1,777,254.64 × 714,925.29
  4. Step 4: Simplify right side
    1,287,930.23x = 1,270,604,288,905.85
  5. Step 5: Solve for x
    x = 1,270,604,288,905.85/1,287,930.23
  6. Step 6: Final answer
    x = 986,547.45

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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.