Home / 740,666.71-1,022,141.06-418,390.39

Finding the Fourth Proportional to 740,666.71, 1,022,141.06 and 418,390.39

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Solution

The fourth proportional to 740,666.71, 1,022,141.06 and 418,390.39 is: 577,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,666.71 : 1,022,141.06 = 418,390.39 : x
  2. Step 2: Convert to fraction form
    740,666.71/1,022,141.06 = 418,390.39/x
  3. Step 3: Cross multiply
    740,666.71x = 1,022,141.06 × 418,390.39
  4. Step 4: Simplify right side
    740,666.71x = 427,653,996,728.41
  5. Step 5: Solve for x
    x = 427,653,996,728.41/740,666.71
  6. Step 6: Final answer
    x = 577,390.60

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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.