Home / 1,357,728.32-1,873,456.80-784,657.82

Finding the Fourth Proportional to 1,357,728.32, 1,873,456.80 and 784,657.82

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Solution

The fourth proportional to 1,357,728.32, 1,873,456.80 and 784,657.82 is: 1,082,707.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,728.32 : 1,873,456.80 = 784,657.82 : x
  2. Step 2: Convert to fraction form
    1,357,728.32/1,873,456.80 = 784,657.82/x
  3. Step 3: Cross multiply
    1,357,728.32x = 1,873,456.80 × 784,657.82
  4. Step 4: Simplify right side
    1,357,728.32x = 1,470,022,528,552.18
  5. Step 5: Solve for x
    x = 1,470,022,528,552.18/1,357,728.32
  6. Step 6: Final answer
    x = 1,082,707.42

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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.