Home / 688,021.44-949,443.55-382,117.52

Finding the Fourth Proportional to 688,021.44, 949,443.55 and 382,117.52

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Solution

The fourth proportional to 688,021.44, 949,443.55 and 382,117.52 is: 527,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,021.44 : 949,443.55 = 382,117.52 : x
  2. Step 2: Convert to fraction form
    688,021.44/949,443.55 = 382,117.52/x
  3. Step 3: Cross multiply
    688,021.44x = 949,443.55 × 382,117.52
  4. Step 4: Simplify right side
    688,021.44x = 362,799,014,706.00
  5. Step 5: Solve for x
    x = 362,799,014,706.00/688,021.44
  6. Step 6: Final answer
    x = 527,307.71

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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.