Home / 884,380.12-1,220,487.83-497,317.35

Finding the Fourth Proportional to 884,380.12, 1,220,487.83 and 497,317.35

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Solution

The fourth proportional to 884,380.12, 1,220,487.83 and 497,317.35 is: 686,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,380.12 : 1,220,487.83 = 497,317.35 : x
  2. Step 2: Convert to fraction form
    884,380.12/1,220,487.83 = 497,317.35/x
  3. Step 3: Cross multiply
    884,380.12x = 1,220,487.83 × 497,317.35
  4. Step 4: Simplify right side
    884,380.12x = 606,969,773,322.85
  5. Step 5: Solve for x
    x = 606,969,773,322.85/884,380.12
  6. Step 6: Final answer
    x = 686,322.27

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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.