Home / 1,440,143.80-2,160,215.70-442,871.80

Finding the Fourth Proportional to 1,440,143.80, 2,160,215.70 and 442,871.80

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Solution

The fourth proportional to 1,440,143.80, 2,160,215.70 and 442,871.80 is: 664,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,143.80 : 2,160,215.70 = 442,871.80 : x
  2. Step 2: Convert to fraction form
    1,440,143.80/2,160,215.70 = 442,871.80/x
  3. Step 3: Cross multiply
    1,440,143.80x = 2,160,215.70 × 442,871.80
  4. Step 4: Simplify right side
    1,440,143.80x = 956,698,615,447.26
  5. Step 5: Solve for x
    x = 956,698,615,447.26/1,440,143.80
  6. Step 6: Final answer
    x = 664,307.70

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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.