Home / 742,678.67-1,024,739.03-436,643.46

Finding the Fourth Proportional to 742,678.67, 1,024,739.03 and 436,643.46

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Solution

The fourth proportional to 742,678.67, 1,024,739.03 and 436,643.46 is: 602,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,678.67 : 1,024,739.03 = 436,643.46 : x
  2. Step 2: Convert to fraction form
    742,678.67/1,024,739.03 = 436,643.46/x
  3. Step 3: Cross multiply
    742,678.67x = 1,024,739.03 × 436,643.46
  4. Step 4: Simplify right side
    742,678.67x = 447,445,596,747.85
  5. Step 5: Solve for x
    x = 447,445,596,747.85/742,678.67
  6. Step 6: Final answer
    x = 602,475.35

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Double scale
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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.