Home / 756,875.60-1,135,313.40-720,011.60

Finding the Fourth Proportional to 756,875.60, 1,135,313.40 and 720,011.60

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Solution

The fourth proportional to 756,875.60, 1,135,313.40 and 720,011.60 is: 1,080,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,875.60 : 1,135,313.40 = 720,011.60 : x
  2. Step 2: Convert to fraction form
    756,875.60/1,135,313.40 = 720,011.60/x
  3. Step 3: Cross multiply
    756,875.60x = 1,135,313.40 × 720,011.60
  4. Step 4: Simplify right side
    756,875.60x = 817,438,817,635.44
  5. Step 5: Solve for x
    x = 817,438,817,635.44/756,875.60
  6. Step 6: Final answer
    x = 1,080,017.40

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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.