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Finding the Fourth Proportional to 882,720, 1,218,173.04 and 480,312

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Solution

The fourth proportional to 882,720, 1,218,173.04 and 480,312 is: 662,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,720 : 1,218,173.04 = 480,312 : x
  2. Step 2: Convert to fraction form
    882,720/1,218,173.04 = 480,312/x
  3. Step 3: Cross multiply
    882,720x = 1,218,173.04 × 480,312
  4. Step 4: Simplify right side
    882,720x = 585,103,129,188.48
  5. Step 5: Solve for x
    x = 585,103,129,188.48/882,720
  6. Step 6: Final answer
    x = 662,841.14

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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.