Home / 788,116.38-1,087,601.81-448,584.63

Finding the Fourth Proportional to 788,116.38, 1,087,601.81 and 448,584.63

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Solution

The fourth proportional to 788,116.38, 1,087,601.81 and 448,584.63 is: 619,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,116.38 : 1,087,601.81 = 448,584.63 : x
  2. Step 2: Convert to fraction form
    788,116.38/1,087,601.81 = 448,584.63/x
  3. Step 3: Cross multiply
    788,116.38x = 1,087,601.81 × 448,584.63
  4. Step 4: Simplify right side
    788,116.38x = 487,881,455,526.18
  5. Step 5: Solve for x
    x = 487,881,455,526.18/788,116.38
  6. Step 6: Final answer
    x = 619,047.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.