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Finding the Fourth Proportional to 600,004.80, 900,007.20 and 432,043.20

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Solution

The fourth proportional to 600,004.80, 900,007.20 and 432,043.20 is: 648,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,004.80 : 900,007.20 = 432,043.20 : x
  2. Step 2: Convert to fraction form
    600,004.80/900,007.20 = 432,043.20/x
  3. Step 3: Cross multiply
    600,004.80x = 900,007.20 × 432,043.20
  4. Step 4: Simplify right side
    600,004.80x = 388,841,990,711.04
  5. Step 5: Solve for x
    x = 388,841,990,711.04/600,004.80
  6. Step 6: Final answer
    x = 648,064.80

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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.