Home / 961,409.78-1,326,691.46-525,740.64

Finding the Fourth Proportional to 961,409.78, 1,326,691.46 and 525,740.64

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Solution

The fourth proportional to 961,409.78, 1,326,691.46 and 525,740.64 is: 725,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,409.78 : 1,326,691.46 = 525,740.64 : x
  2. Step 2: Convert to fraction form
    961,409.78/1,326,691.46 = 525,740.64/x
  3. Step 3: Cross multiply
    961,409.78x = 1,326,691.46 × 525,740.64
  4. Step 4: Simplify right side
    961,409.78x = 697,495,614,634.23
  5. Step 5: Solve for x
    x = 697,495,614,634.23/961,409.78
  6. Step 6: Final answer
    x = 725,492.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.