Home / 1,298,639.30-1,948,943.10-849,210.80

Finding the Fourth Proportional to 1,298,639.30, 1,948,943.10 and 849,210.80

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Solution

The fourth proportional to 1,298,639.30, 1,948,943.10 and 849,210.80 is: 1,274,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,639.30 : 1,948,943.10 = 849,210.80 : x
  2. Step 2: Convert to fraction form
    1,298,639.30/1,948,943.10 = 849,210.80/x
  3. Step 3: Cross multiply
    1,298,639.30x = 1,948,943.10 × 849,210.80
  4. Step 4: Simplify right side
    1,298,639.30x = 1,655,063,529,105.48
  5. Step 5: Solve for x
    x = 1,655,063,529,105.48/1,298,639.30
  6. Step 6: Final answer
    x = 1,274,459.76

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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.