Home / 877,948.23-1,315,905.78-403,638.15

Finding the Fourth Proportional to 877,948.23, 1,315,905.78 and 403,638.15

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Solution

The fourth proportional to 877,948.23, 1,315,905.78 and 403,638.15 is: 604,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,948.23 : 1,315,905.78 = 403,638.15 : x
  2. Step 2: Convert to fraction form
    877,948.23/1,315,905.78 = 403,638.15/x
  3. Step 3: Cross multiply
    877,948.23x = 1,315,905.78 × 403,638.15
  4. Step 4: Simplify right side
    877,948.23x = 531,149,774,613.51
  5. Step 5: Solve for x
    x = 531,149,774,613.51/877,948.23
  6. Step 6: Final answer
    x = 604,989.86

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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.