Home / 909,012.81-1,254,441.48-501,105.70

Finding the Fourth Proportional to 909,012.81, 1,254,441.48 and 501,105.70

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Solution

The fourth proportional to 909,012.81, 1,254,441.48 and 501,105.70 is: 691,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,012.81 : 1,254,441.48 = 501,105.70 : x
  2. Step 2: Convert to fraction form
    909,012.81/1,254,441.48 = 501,105.70/x
  3. Step 3: Cross multiply
    909,012.81x = 1,254,441.48 × 501,105.70
  4. Step 4: Simplify right side
    909,012.81x = 628,607,772,808.33
  5. Step 5: Solve for x
    x = 628,607,772,808.33/909,012.81
  6. Step 6: Final answer
    x = 691,527.96

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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.