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Finding the Fourth Proportional to 480,009.80, 720,014.70 and 471,715.40

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Solution

The fourth proportional to 480,009.80, 720,014.70 and 471,715.40 is: 707,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,009.80 : 720,014.70 = 471,715.40 : x
  2. Step 2: Convert to fraction form
    480,009.80/720,014.70 = 471,715.40/x
  3. Step 3: Cross multiply
    480,009.80x = 720,014.70 × 471,715.40
  4. Step 4: Simplify right side
    480,009.80x = 339,642,022,216.38
  5. Step 5: Solve for x
    x = 339,642,022,216.38/480,009.80
  6. Step 6: Final answer
    x = 707,573.10

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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.