Home / 988,943.35-1,483,663.74-456,840.85

Finding the Fourth Proportional to 988,943.35, 1,483,663.74 and 456,840.85

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Solution

The fourth proportional to 988,943.35, 1,483,663.74 and 456,840.85 is: 685,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,943.35 : 1,483,663.74 = 456,840.85 : x
  2. Step 2: Convert to fraction form
    988,943.35/1,483,663.74 = 456,840.85/x
  3. Step 3: Cross multiply
    988,943.35x = 1,483,663.74 × 456,840.85
  4. Step 4: Simplify right side
    988,943.35x = 677,798,204,095.78
  5. Step 5: Solve for x
    x = 677,798,204,095.78/988,943.35
  6. Step 6: Final answer
    x = 685,376.17

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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.