Home / 875,345.30-1,313,157.87-369,911.10

Finding the Fourth Proportional to 875,345.30, 1,313,157.87 and 369,911.10

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Solution

The fourth proportional to 875,345.30, 1,313,157.87 and 369,911.10 is: 554,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,345.30 : 1,313,157.87 = 369,911.10 : x
  2. Step 2: Convert to fraction form
    875,345.30/1,313,157.87 = 369,911.10/x
  3. Step 3: Cross multiply
    875,345.30x = 1,313,157.87 × 369,911.10
  4. Step 4: Simplify right side
    875,345.30x = 485,751,672,165.36
  5. Step 5: Solve for x
    x = 485,751,672,165.36/875,345.30
  6. Step 6: Final answer
    x = 554,925.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.