Home / 742,757.50-1,025,017.77-403,225.75

Finding the Fourth Proportional to 742,757.50, 1,025,017.77 and 403,225.75

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Solution

The fourth proportional to 742,757.50, 1,025,017.77 and 403,225.75 is: 556,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,757.50 : 1,025,017.77 = 403,225.75 : x
  2. Step 2: Convert to fraction form
    742,757.50/1,025,017.77 = 403,225.75/x
  3. Step 3: Cross multiply
    742,757.50x = 1,025,017.77 × 403,225.75
  4. Step 4: Simplify right side
    742,757.50x = 413,313,559,071.58
  5. Step 5: Solve for x
    x = 413,313,559,071.58/742,757.50
  6. Step 6: Final answer
    x = 556,458.28

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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.