Home / 989,955.80-1,484,933.70-242,001.80

Finding the Fourth Proportional to 989,955.80, 1,484,933.70 and 242,001.80

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Solution

The fourth proportional to 989,955.80, 1,484,933.70 and 242,001.80 is: 363,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,955.80 : 1,484,933.70 = 242,001.80 : x
  2. Step 2: Convert to fraction form
    989,955.80/1,484,933.70 = 242,001.80/x
  3. Step 3: Cross multiply
    989,955.80x = 1,484,933.70 × 242,001.80
  4. Step 4: Simplify right side
    989,955.80x = 359,356,628,280.66
  5. Step 5: Solve for x
    x = 359,356,628,280.66/989,955.80
  6. Step 6: Final answer
    x = 363,002.70

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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.