Home / 810,220.67-1,118,221.65-483,547.55

Finding the Fourth Proportional to 810,220.67, 1,118,221.65 and 483,547.55

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Solution

The fourth proportional to 810,220.67, 1,118,221.65 and 483,547.55 is: 667,365.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,220.67 : 1,118,221.65 = 483,547.55 : x
  2. Step 2: Convert to fraction form
    810,220.67/1,118,221.65 = 483,547.55/x
  3. Step 3: Cross multiply
    810,220.67x = 1,118,221.65 × 483,547.55
  4. Step 4: Simplify right side
    810,220.67x = 540,713,333,623.35
  5. Step 5: Solve for x
    x = 540,713,333,623.35/810,220.67
  6. Step 6: Final answer
    x = 667,365.52

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Double scale
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Similar ratio
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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.