Home / 975,251.61-1,345,258.74-644,109.57

Finding the Fourth Proportional to 975,251.61, 1,345,258.74 and 644,109.57

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Solution

The fourth proportional to 975,251.61, 1,345,258.74 and 644,109.57 is: 888,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,251.61 : 1,345,258.74 = 644,109.57 : x
  2. Step 2: Convert to fraction form
    975,251.61/1,345,258.74 = 644,109.57/x
  3. Step 3: Cross multiply
    975,251.61x = 1,345,258.74 × 644,109.57
  4. Step 4: Simplify right side
    975,251.61x = 866,494,028,560.14
  5. Step 5: Solve for x
    x = 866,494,028,560.14/975,251.61
  6. Step 6: Final answer
    x = 888,482.54

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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.