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Finding the Fourth Proportional to 742,752, 1,025,010.18 and 403,220.24

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Solution

The fourth proportional to 742,752, 1,025,010.18 and 403,220.24 is: 556,450.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,752 : 1,025,010.18 = 403,220.24 : x
  2. Step 2: Convert to fraction form
    742,752/1,025,010.18 = 403,220.24/x
  3. Step 3: Cross multiply
    742,752x = 1,025,010.18 × 403,220.24
  4. Step 4: Simplify right side
    742,752x = 413,304,850,782.04
  5. Step 5: Solve for x
    x = 413,304,850,782.04/742,752
  6. Step 6: Final answer
    x = 556,450.67

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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.