Home / 742,537.53-1,024,702.25-403,005.78

Finding the Fourth Proportional to 742,537.53, 1,024,702.25 and 403,005.78

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Solution

The fourth proportional to 742,537.53, 1,024,702.25 and 403,005.78 is: 556,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,537.53 : 1,024,702.25 = 403,005.78 : x
  2. Step 2: Convert to fraction form
    742,537.53/1,024,702.25 = 403,005.78/x
  3. Step 3: Cross multiply
    742,537.53x = 1,024,702.25 × 403,005.78
  4. Step 4: Simplify right side
    742,537.53x = 412,960,927,513.98
  5. Step 5: Solve for x
    x = 412,960,927,513.98/742,537.53
  6. Step 6: Final answer
    x = 556,148.22

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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.