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Finding the Fourth Proportional to 862,273.02, 1,189,973.52 and 480,300

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Solution

The fourth proportional to 862,273.02, 1,189,973.52 and 480,300 is: 662,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,273.02 : 1,189,973.52 = 480,300 : x
  2. Step 2: Convert to fraction form
    862,273.02/1,189,973.52 = 480,300/x
  3. Step 3: Cross multiply
    862,273.02x = 1,189,973.52 × 480,300
  4. Step 4: Simplify right side
    862,273.02x = 571,544,281,656
  5. Step 5: Solve for x
    x = 571,544,281,656/862,273.02
  6. Step 6: Final answer
    x = 662,834.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.