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Finding the Fourth Proportional to 884,420.40, 1,220,504.16 and 502,468.12

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Solution

The fourth proportional to 884,420.40, 1,220,504.16 and 502,468.12 is: 693,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,420.40 : 1,220,504.16 = 502,468.12 : x
  2. Step 2: Convert to fraction form
    884,420.40/1,220,504.16 = 502,468.12/x
  3. Step 3: Cross multiply
    884,420.40x = 1,220,504.16 × 502,468.12
  4. Step 4: Simplify right side
    884,420.40x = 613,264,430,727.38
  5. Step 5: Solve for x
    x = 613,264,430,727.38/884,420.40
  6. Step 6: Final answer
    x = 693,408.28

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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.