Home / 874,616.08-1,312,305.28-306,404.80

Finding the Fourth Proportional to 874,616.08, 1,312,305.28 and 306,404.80

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Solution

The fourth proportional to 874,616.08, 1,312,305.28 and 306,404.80 is: 459,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,616.08 : 1,312,305.28 = 306,404.80 : x
  2. Step 2: Convert to fraction form
    874,616.08/1,312,305.28 = 306,404.80/x
  3. Step 3: Cross multiply
    874,616.08x = 1,312,305.28 × 306,404.80
  4. Step 4: Simplify right side
    874,616.08x = 402,096,636,857.34
  5. Step 5: Solve for x
    x = 402,096,636,857.34/874,616.08
  6. Step 6: Final answer
    x = 459,740.73

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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.