Home / 724,671.70-1,087,007.55-644,955.55

Finding the Fourth Proportional to 724,671.70, 1,087,007.55 and 644,955.55

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Solution

The fourth proportional to 724,671.70, 1,087,007.55 and 644,955.55 is: 967,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,671.70 : 1,087,007.55 = 644,955.55 : x
  2. Step 2: Convert to fraction form
    724,671.70/1,087,007.55 = 644,955.55/x
  3. Step 3: Cross multiply
    724,671.70x = 1,087,007.55 × 644,955.55
  4. Step 4: Simplify right side
    724,671.70x = 701,071,552,264.40
  5. Step 5: Solve for x
    x = 701,071,552,264.40/724,671.70
  6. Step 6: Final answer
    x = 967,433.33

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Double scale
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Similar ratio
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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.