Home / 761,621.81-1,051,038.11-422,111.93

Finding the Fourth Proportional to 761,621.81, 1,051,038.11 and 422,111.93

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Solution

The fourth proportional to 761,621.81, 1,051,038.11 and 422,111.93 is: 582,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,621.81 : 1,051,038.11 = 422,111.93 : x
  2. Step 2: Convert to fraction form
    761,621.81/1,051,038.11 = 422,111.93/x
  3. Step 3: Cross multiply
    761,621.81x = 1,051,038.11 × 422,111.93
  4. Step 4: Simplify right side
    761,621.81x = 443,655,725,632.69
  5. Step 5: Solve for x
    x = 443,655,725,632.69/761,621.81
  6. Step 6: Final answer
    x = 582,514.47

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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.