Home / 722,890.90-997,595.22-400,606.35

Finding the Fourth Proportional to 722,890.90, 997,595.22 and 400,606.35

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Solution

The fourth proportional to 722,890.90, 997,595.22 and 400,606.35 is: 552,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,890.90 : 997,595.22 = 400,606.35 : x
  2. Step 2: Convert to fraction form
    722,890.90/997,595.22 = 400,606.35/x
  3. Step 3: Cross multiply
    722,890.90x = 997,595.22 × 400,606.35
  4. Step 4: Simplify right side
    722,890.90x = 399,642,974,873.67
  5. Step 5: Solve for x
    x = 399,642,974,873.67/722,890.90
  6. Step 6: Final answer
    x = 552,839.96

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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.