Home / 742,335.98-1,024,435.55-402,804.23

Finding the Fourth Proportional to 742,335.98, 1,024,435.55 and 402,804.23

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Solution

The fourth proportional to 742,335.98, 1,024,435.55 and 402,804.23 is: 555,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,335.98 : 1,024,435.55 = 402,804.23 : x
  2. Step 2: Convert to fraction form
    742,335.98/1,024,435.55 = 402,804.23/x
  3. Step 3: Cross multiply
    742,335.98x = 1,024,435.55 × 402,804.23
  4. Step 4: Simplify right side
    742,335.98x = 412,646,968,787.21
  5. Step 5: Solve for x
    x = 412,646,968,787.21/742,335.98
  6. Step 6: Final answer
    x = 555,876.29

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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.