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Finding the Fourth Proportional to 884,485.80, 1,220,590.80 and 502,513.20

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Solution

The fourth proportional to 884,485.80, 1,220,590.80 and 502,513.20 is: 693,468.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,485.80 : 1,220,590.80 = 502,513.20 : x
  2. Step 2: Convert to fraction form
    884,485.80/1,220,590.80 = 502,513.20/x
  3. Step 3: Cross multiply
    884,485.80x = 1,220,590.80 × 502,513.20
  4. Step 4: Simplify right side
    884,485.80x = 613,362,988,798.56
  5. Step 5: Solve for x
    x = 613,362,988,798.56/884,485.80
  6. Step 6: Final answer
    x = 693,468.44

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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.