Home / 879,834.33-1,214,270.12-497,885.71

Finding the Fourth Proportional to 879,834.33, 1,214,270.12 and 497,885.71

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Solution

The fourth proportional to 879,834.33, 1,214,270.12 and 497,885.71 is: 687,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,834.33 : 1,214,270.12 = 497,885.71 : x
  2. Step 2: Convert to fraction form
    879,834.33/1,214,270.12 = 497,885.71/x
  3. Step 3: Cross multiply
    879,834.33x = 1,214,270.12 × 497,885.71
  4. Step 4: Simplify right side
    879,834.33x = 604,567,740,827.99
  5. Step 5: Solve for x
    x = 604,567,740,827.99/879,834.33
  6. Step 6: Final answer
    x = 687,138.16

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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.