Home / 989,444.10-1,484,166.15-458,003.10

Finding the Fourth Proportional to 989,444.10, 1,484,166.15 and 458,003.10

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Solution

The fourth proportional to 989,444.10, 1,484,166.15 and 458,003.10 is: 687,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,444.10 : 1,484,166.15 = 458,003.10 : x
  2. Step 2: Convert to fraction form
    989,444.10/1,484,166.15 = 458,003.10/x
  3. Step 3: Cross multiply
    989,444.10x = 1,484,166.15 × 458,003.10
  4. Step 4: Simplify right side
    989,444.10x = 679,752,697,615.07
  5. Step 5: Solve for x
    x = 679,752,697,615.07/989,444.10
  6. Step 6: Final answer
    x = 687,004.65

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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.