Home / 770,300.64-1,063,432.80-464,431.68

Finding the Fourth Proportional to 770,300.64, 1,063,432.80 and 464,431.68

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Solution

The fourth proportional to 770,300.64, 1,063,432.80 and 464,431.68 is: 641,167.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,300.64 : 1,063,432.80 = 464,431.68 : x
  2. Step 2: Convert to fraction form
    770,300.64/1,063,432.80 = 464,431.68/x
  3. Step 3: Cross multiply
    770,300.64x = 1,063,432.80 × 464,431.68
  4. Step 4: Simplify right side
    770,300.64x = 493,891,881,871.10
  5. Step 5: Solve for x
    x = 493,891,881,871.10/770,300.64
  6. Step 6: Final answer
    x = 641,167.69

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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.