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Finding the Fourth Proportional to 884,503.83, 1,220,601.78 and 497,319.60

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Solution

The fourth proportional to 884,503.83, 1,220,601.78 and 497,319.60 is: 686,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,503.83 : 1,220,601.78 = 497,319.60 : x
  2. Step 2: Convert to fraction form
    884,503.83/1,220,601.78 = 497,319.60/x
  3. Step 3: Cross multiply
    884,503.83x = 1,220,601.78 × 497,319.60
  4. Step 4: Simplify right side
    884,503.83x = 607,029,188,988.89
  5. Step 5: Solve for x
    x = 607,029,188,988.89/884,503.83
  6. Step 6: Final answer
    x = 686,293.45

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Double scale
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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.