Home / 743,899.31-1,114,915.04-402,329.12

Finding the Fourth Proportional to 743,899.31, 1,114,915.04 and 402,329.12

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Solution

The fourth proportional to 743,899.31, 1,114,915.04 and 402,329.12 is: 602,988.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,899.31 : 1,114,915.04 = 402,329.12 : x
  2. Step 2: Convert to fraction form
    743,899.31/1,114,915.04 = 402,329.12/x
  3. Step 3: Cross multiply
    743,899.31x = 1,114,915.04 × 402,329.12
  4. Step 4: Simplify right side
    743,899.31x = 448,562,779,331.74
  5. Step 5: Solve for x
    x = 448,562,779,331.74/743,899.31
  6. Step 6: Final answer
    x = 602,988.57

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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.