Home / 730,309.89-1,007,809.05-408,022.40

Finding the Fourth Proportional to 730,309.89, 1,007,809.05 and 408,022.40

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Solution

The fourth proportional to 730,309.89, 1,007,809.05 and 408,022.40 is: 563,060.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,309.89 : 1,007,809.05 = 408,022.40 : x
  2. Step 2: Convert to fraction form
    730,309.89/1,007,809.05 = 408,022.40/x
  3. Step 3: Cross multiply
    730,309.89x = 1,007,809.05 × 408,022.40
  4. Step 4: Simplify right side
    730,309.89x = 411,208,667,322.72
  5. Step 5: Solve for x
    x = 411,208,667,322.72/730,309.89
  6. Step 6: Final answer
    x = 563,060.52

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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.