Home / 816,875.72-1,225,479.66-284,438.26

Finding the Fourth Proportional to 816,875.72, 1,225,479.66 and 284,438.26

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Solution

The fourth proportional to 816,875.72, 1,225,479.66 and 284,438.26 is: 426,715.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,875.72 : 1,225,479.66 = 284,438.26 : x
  2. Step 2: Convert to fraction form
    816,875.72/1,225,479.66 = 284,438.26/x
  3. Step 3: Cross multiply
    816,875.72x = 1,225,479.66 × 284,438.26
  4. Step 4: Simplify right side
    816,875.72x = 348,573,302,155.79
  5. Step 5: Solve for x
    x = 348,573,302,155.79/816,875.72
  6. Step 6: Final answer
    x = 426,715.22

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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.