Home / 742,421.44-1,024,535.59-402,889.69

Finding the Fourth Proportional to 742,421.44, 1,024,535.59 and 402,889.69

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Solution

The fourth proportional to 742,421.44, 1,024,535.59 and 402,889.69 is: 555,984.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,421.44 : 1,024,535.59 = 402,889.69 : x
  2. Step 2: Convert to fraction form
    742,421.44/1,024,535.59 = 402,889.69/x
  3. Step 3: Cross multiply
    742,421.44x = 1,024,535.59 × 402,889.69
  4. Step 4: Simplify right side
    742,421.44x = 412,774,826,249.07
  5. Step 5: Solve for x
    x = 412,774,826,249.07/742,421.44
  6. Step 6: Final answer
    x = 555,984.52

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Double scale
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Similar ratio
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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.