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Finding the Fourth Proportional to 485,810.60, 730,271.10 and 346,533.80

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Solution

The fourth proportional to 485,810.60, 730,271.10 and 346,533.80 is: 520,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,810.60 : 730,271.10 = 346,533.80 : x
  2. Step 2: Convert to fraction form
    485,810.60/730,271.10 = 346,533.80/x
  3. Step 3: Cross multiply
    485,810.60x = 730,271.10 × 346,533.80
  4. Step 4: Simplify right side
    485,810.60x = 253,063,619,313.18
  5. Step 5: Solve for x
    x = 253,063,619,313.18/485,810.60
  6. Step 6: Final answer
    x = 520,910.04

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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.