Home / 788,555.66-1,087,073.87-561,807.50

Finding the Fourth Proportional to 788,555.66, 1,087,073.87 and 561,807.50

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Solution

The fourth proportional to 788,555.66, 1,087,073.87 and 561,807.50 is: 774,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,555.66 : 1,087,073.87 = 561,807.50 : x
  2. Step 2: Convert to fraction form
    788,555.66/1,087,073.87 = 561,807.50/x
  3. Step 3: Cross multiply
    788,555.66x = 1,087,073.87 × 561,807.50
  4. Step 4: Simplify right side
    788,555.66x = 610,726,244,975.62
  5. Step 5: Solve for x
    x = 610,726,244,975.62/788,555.66
  6. Step 6: Final answer
    x = 774,487.18

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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.