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Finding the Fourth Proportional to 480,004.80, 720,007.20 and 471,710.40

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Solution

The fourth proportional to 480,004.80, 720,007.20 and 471,710.40 is: 707,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,004.80 : 720,007.20 = 471,710.40 : x
  2. Step 2: Convert to fraction form
    480,004.80/720,007.20 = 471,710.40/x
  3. Step 3: Cross multiply
    480,004.80x = 720,007.20 × 471,710.40
  4. Step 4: Simplify right side
    480,004.80x = 339,634,884,314.88
  5. Step 5: Solve for x
    x = 339,634,884,314.88/480,004.80
  6. Step 6: Final answer
    x = 707,565.60

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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.