Home / 722,849.74-997,538.50-400,565.22

Finding the Fourth Proportional to 722,849.74, 997,538.50 and 400,565.22

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Solution

The fourth proportional to 722,849.74, 997,538.50 and 400,565.22 is: 552,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,849.74 : 997,538.50 = 400,565.22 : x
  2. Step 2: Convert to fraction form
    722,849.74/997,538.50 = 400,565.22/x
  3. Step 3: Cross multiply
    722,849.74x = 997,538.50 × 400,565.22
  4. Step 4: Simplify right side
    722,849.74x = 399,579,228,710.97
  5. Step 5: Solve for x
    x = 399,579,228,710.97/722,849.74
  6. Step 6: Final answer
    x = 552,783.25

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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.