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Finding the Fourth Proportional to 770,851.80, 1,063,648.58 and 484,167.68

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Solution

The fourth proportional to 770,851.80, 1,063,648.58 and 484,167.68 is: 668,071.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,851.80 : 1,063,648.58 = 484,167.68 : x
  2. Step 2: Convert to fraction form
    770,851.80/1,063,648.58 = 484,167.68/x
  3. Step 3: Cross multiply
    770,851.80x = 1,063,648.58 × 484,167.68
  4. Step 4: Simplify right side
    770,851.80x = 514,984,265,313.89
  5. Step 5: Solve for x
    x = 514,984,265,313.89/770,851.80
  6. Step 6: Final answer
    x = 668,071.69

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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.