Home / 788,170.32-1,085,384.12-684,756.68

Finding the Fourth Proportional to 788,170.32, 1,085,384.12 and 684,756.68

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Solution

The fourth proportional to 788,170.32, 1,085,384.12 and 684,756.68 is: 942,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,170.32 : 1,085,384.12 = 684,756.68 : x
  2. Step 2: Convert to fraction form
    788,170.32/1,085,384.12 = 684,756.68/x
  3. Step 3: Cross multiply
    788,170.32x = 1,085,384.12 × 684,756.68
  4. Step 4: Simplify right side
    788,170.32x = 743,224,026,535.92
  5. Step 5: Solve for x
    x = 743,224,026,535.92/788,170.32
  6. Step 6: Final answer
    x = 942,973.88

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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.