Home / 742,988.25-1,025,336.57-403,456.50

Finding the Fourth Proportional to 742,988.25, 1,025,336.57 and 403,456.50

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Solution

The fourth proportional to 742,988.25, 1,025,336.57 and 403,456.50 is: 556,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,988.25 : 1,025,336.57 = 403,456.50 : x
  2. Step 2: Convert to fraction form
    742,988.25/1,025,336.57 = 403,456.50/x
  3. Step 3: Cross multiply
    742,988.25x = 1,025,336.57 × 403,456.50
  4. Step 4: Simplify right side
    742,988.25x = 413,678,701,836.92
  5. Step 5: Solve for x
    x = 413,678,701,836.92/742,988.25
  6. Step 6: Final answer
    x = 556,776.91

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1.5x scale

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.