Home / 742,494.96-1,024,642.78-402,963.21

Finding the Fourth Proportional to 742,494.96, 1,024,642.78 and 402,963.21

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Solution

The fourth proportional to 742,494.96, 1,024,642.78 and 402,963.21 is: 556,089.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,494.96 : 1,024,642.78 = 402,963.21 : x
  2. Step 2: Convert to fraction form
    742,494.96/1,024,642.78 = 402,963.21/x
  3. Step 3: Cross multiply
    742,494.96x = 1,024,642.78 × 402,963.21
  4. Step 4: Simplify right side
    742,494.96x = 412,893,342,724.72
  5. Step 5: Solve for x
    x = 412,893,342,724.72/742,494.96
  6. Step 6: Final answer
    x = 556,089.08

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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.