Home / 989,552.70-1,483,344.90-456,143.40

Finding the Fourth Proportional to 989,552.70, 1,483,344.90 and 456,143.40

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Solution

The fourth proportional to 989,552.70, 1,483,344.90 and 456,143.40 is: 683,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,552.70 : 1,483,344.90 = 456,143.40 : x
  2. Step 2: Convert to fraction form
    989,552.70/1,483,344.90 = 456,143.40/x
  3. Step 3: Cross multiply
    989,552.70x = 1,483,344.90 × 456,143.40
  4. Step 4: Simplify right side
    989,552.70x = 676,617,986,058.66
  5. Step 5: Solve for x
    x = 676,617,986,058.66/989,552.70
  6. Step 6: Final answer
    x = 683,761.45

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Double scale
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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.