Home / 1,240,417.80-1,860,626.70-442,600.20

Finding the Fourth Proportional to 1,240,417.80, 1,860,626.70 and 442,600.20

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Solution

The fourth proportional to 1,240,417.80, 1,860,626.70 and 442,600.20 is: 663,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,417.80 : 1,860,626.70 = 442,600.20 : x
  2. Step 2: Convert to fraction form
    1,240,417.80/1,860,626.70 = 442,600.20/x
  3. Step 3: Cross multiply
    1,240,417.80x = 1,860,626.70 × 442,600.20
  4. Step 4: Simplify right side
    1,240,417.80x = 823,513,749,545.34
  5. Step 5: Solve for x
    x = 823,513,749,545.34/1,240,417.80
  6. Step 6: Final answer
    x = 663,900.30

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1.5x scale

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.