Home / 740,019.49-1,021,226.87-400,487.74

Finding the Fourth Proportional to 740,019.49, 1,021,226.87 and 400,487.74

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Solution

The fourth proportional to 740,019.49, 1,021,226.87 and 400,487.74 is: 552,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,019.49 : 1,021,226.87 = 400,487.74 : x
  2. Step 2: Convert to fraction form
    740,019.49/1,021,226.87 = 400,487.74/x
  3. Step 3: Cross multiply
    740,019.49x = 1,021,226.87 × 400,487.74
  4. Step 4: Simplify right side
    740,019.49x = 408,988,839,641.73
  5. Step 5: Solve for x
    x = 408,988,839,641.73/740,019.49
  6. Step 6: Final answer
    x = 552,673.07

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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.