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Finding the Fourth Proportional to 722,847.18, 997,534.98 and 400,562.67

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Solution

The fourth proportional to 722,847.18, 997,534.98 and 400,562.67 is: 552,779.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,847.18 : 997,534.98 = 400,562.67 : x
  2. Step 2: Convert to fraction form
    722,847.18/997,534.98 = 400,562.67/x
  3. Step 3: Cross multiply
    722,847.18x = 997,534.98 × 400,562.67
  4. Step 4: Simplify right side
    722,847.18x = 399,575,275,007.20
  5. Step 5: Solve for x
    x = 399,575,275,007.20/722,847.18
  6. Step 6: Final answer
    x = 552,779.74

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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.