Home / 856,386.61-1,284,609.09-406,875.49

Finding the Fourth Proportional to 856,386.61, 1,284,609.09 and 406,875.49

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Solution

The fourth proportional to 856,386.61, 1,284,609.09 and 406,875.49 is: 610,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,386.61 : 1,284,609.09 = 406,875.49 : x
  2. Step 2: Convert to fraction form
    856,386.61/1,284,609.09 = 406,875.49/x
  3. Step 3: Cross multiply
    856,386.61x = 1,284,609.09 × 406,875.49
  4. Step 4: Simplify right side
    856,386.61x = 522,675,952,952.20
  5. Step 5: Solve for x
    x = 522,675,952,952.20/856,386.61
  6. Step 6: Final answer
    x = 610,327.10

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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.