Home / 1,715,904.96-2,368,060.80-990,783.20

Finding the Fourth Proportional to 1,715,904.96, 2,368,060.80 and 990,783.20

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Solution

The fourth proportional to 1,715,904.96, 2,368,060.80 and 990,783.20 is: 1,367,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715,904.96 : 2,368,060.80 = 990,783.20 : x
  2. Step 2: Convert to fraction form
    1,715,904.96/2,368,060.80 = 990,783.20/x
  3. Step 3: Cross multiply
    1,715,904.96x = 2,368,060.80 × 990,783.20
  4. Step 4: Simplify right side
    1,715,904.96x = 2,346,234,857,218.56
  5. Step 5: Solve for x
    x = 2,346,234,857,218.56/1,715,904.96
  6. Step 6: Final answer
    x = 1,367,345.46

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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.