Home / 1,312,513.50-1,811,269.86-708,901.50

Finding the Fourth Proportional to 1,312,513.50, 1,811,269.86 and 708,901.50

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Solution

The fourth proportional to 1,312,513.50, 1,811,269.86 and 708,901.50 is: 978,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,513.50 : 1,811,269.86 = 708,901.50 : x
  2. Step 2: Convert to fraction form
    1,312,513.50/1,811,269.86 = 708,901.50/x
  3. Step 3: Cross multiply
    1,312,513.50x = 1,811,269.86 × 708,901.50
  4. Step 4: Simplify right side
    1,312,513.50x = 1,284,011,920,658.79
  5. Step 5: Solve for x
    x = 1,284,011,920,658.79/1,312,513.50
  6. Step 6: Final answer
    x = 978,284.73

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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.