Home / 1,243,639.80-1,865,459.70-444,947.40

Finding the Fourth Proportional to 1,243,639.80, 1,865,459.70 and 444,947.40

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Solution

The fourth proportional to 1,243,639.80, 1,865,459.70 and 444,947.40 is: 667,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,639.80 : 1,865,459.70 = 444,947.40 : x
  2. Step 2: Convert to fraction form
    1,243,639.80/1,865,459.70 = 444,947.40/x
  3. Step 3: Cross multiply
    1,243,639.80x = 1,865,459.70 × 444,947.40
  4. Step 4: Simplify right side
    1,243,639.80x = 830,031,443,319.78
  5. Step 5: Solve for x
    x = 830,031,443,319.78/1,243,639.80
  6. Step 6: Final answer
    x = 667,421.10

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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.