Home / 880,834.72-1,215,567.92-498,940.80

Finding the Fourth Proportional to 880,834.72, 1,215,567.92 and 498,940.80

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Solution

The fourth proportional to 880,834.72, 1,215,567.92 and 498,940.80 is: 688,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,834.72 : 1,215,567.92 = 498,940.80 : x
  2. Step 2: Convert to fraction form
    880,834.72/1,215,567.92 = 498,940.80/x
  3. Step 3: Cross multiply
    880,834.72x = 1,215,567.92 × 498,940.80
  4. Step 4: Simplify right side
    880,834.72x = 606,496,430,459.14
  5. Step 5: Solve for x
    x = 606,496,430,459.14/880,834.72
  6. Step 6: Final answer
    x = 688,547.37

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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.