Home / 1,402,862.80-2,103,257.40-772,488.40

Finding the Fourth Proportional to 1,402,862.80, 2,103,257.40 and 772,488.40

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Solution

The fourth proportional to 1,402,862.80, 2,103,257.40 and 772,488.40 is: 1,158,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,862.80 : 2,103,257.40 = 772,488.40 : x
  2. Step 2: Convert to fraction form
    1,402,862.80/2,103,257.40 = 772,488.40/x
  3. Step 3: Cross multiply
    1,402,862.80x = 2,103,257.40 × 772,488.40
  4. Step 4: Simplify right side
    1,402,862.80x = 1,624,741,943,714.16
  5. Step 5: Solve for x
    x = 1,624,741,943,714.16/1,402,862.80
  6. Step 6: Final answer
    x = 1,158,161.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.