Home / 1,643,345.40-2,465,018.10-1,010,206.20

Finding the Fourth Proportional to 1,643,345.40, 2,465,018.10 and 1,010,206.20

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Solution

The fourth proportional to 1,643,345.40, 2,465,018.10 and 1,010,206.20 is: 1,515,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,345.40 : 2,465,018.10 = 1,010,206.20 : x
  2. Step 2: Convert to fraction form
    1,643,345.40/2,465,018.10 = 1,010,206.20/x
  3. Step 3: Cross multiply
    1,643,345.40x = 2,465,018.10 × 1,010,206.20
  4. Step 4: Simplify right side
    1,643,345.40x = 2,490,176,567,732.22
  5. Step 5: Solve for x
    x = 2,490,176,567,732.22/1,643,345.40
  6. Step 6: Final answer
    x = 1,515,309.30

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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.