Home / 1,440,047.20-2,160,070.80-442,645.60

Finding the Fourth Proportional to 1,440,047.20, 2,160,070.80 and 442,645.60

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Solution

The fourth proportional to 1,440,047.20, 2,160,070.80 and 442,645.60 is: 663,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,047.20 : 2,160,070.80 = 442,645.60 : x
  2. Step 2: Convert to fraction form
    1,440,047.20/2,160,070.80 = 442,645.60/x
  3. Step 3: Cross multiply
    1,440,047.20x = 2,160,070.80 × 442,645.60
  4. Step 4: Simplify right side
    1,440,047.20x = 956,145,835,308.48
  5. Step 5: Solve for x
    x = 956,145,835,308.48/1,440,047.20
  6. Step 6: Final answer
    x = 663,968.40

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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.