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Finding the Fourth Proportional to 540,426.60, 808,307.10 and 456,445.80

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Solution

The fourth proportional to 540,426.60, 808,307.10 and 456,445.80 is: 682,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,426.60 : 808,307.10 = 456,445.80 : x
  2. Step 2: Convert to fraction form
    540,426.60/808,307.10 = 456,445.80/x
  3. Step 3: Cross multiply
    540,426.60x = 808,307.10 × 456,445.80
  4. Step 4: Simplify right side
    540,426.60x = 368,948,380,905.18
  5. Step 5: Solve for x
    x = 368,948,380,905.18/540,426.60
  6. Step 6: Final answer
    x = 682,698.41

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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.