Home / 821,699.92-1,133,521.32-520,068.88

Finding the Fourth Proportional to 821,699.92, 1,133,521.32 and 520,068.88

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Solution

The fourth proportional to 821,699.92, 1,133,521.32 and 520,068.88 is: 717,426.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,699.92 : 1,133,521.32 = 520,068.88 : x
  2. Step 2: Convert to fraction form
    821,699.92/1,133,521.32 = 520,068.88/x
  3. Step 3: Cross multiply
    821,699.92x = 1,133,521.32 × 520,068.88
  4. Step 4: Simplify right side
    821,699.92x = 589,509,163,348.52
  5. Step 5: Solve for x
    x = 589,509,163,348.52/821,699.92
  6. Step 6: Final answer
    x = 717,426.34

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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.