Home / 690,871.96-1,036,345.02-217,594.36

Finding the Fourth Proportional to 690,871.96, 1,036,345.02 and 217,594.36

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Solution

The fourth proportional to 690,871.96, 1,036,345.02 and 217,594.36 is: 326,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,871.96 : 1,036,345.02 = 217,594.36 : x
  2. Step 2: Convert to fraction form
    690,871.96/1,036,345.02 = 217,594.36/x
  3. Step 3: Cross multiply
    690,871.96x = 1,036,345.02 × 217,594.36
  4. Step 4: Simplify right side
    690,871.96x = 225,502,831,366.09
  5. Step 5: Solve for x
    x = 225,502,831,366.09/690,871.96
  6. Step 6: Final answer
    x = 326,403.22

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.