Home / 909,210.83-1,254,720.78-501,313.46

Finding the Fourth Proportional to 909,210.83, 1,254,720.78 and 501,313.46

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Solution

The fourth proportional to 909,210.83, 1,254,720.78 and 501,313.46 is: 691,817.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,210.83 : 1,254,720.78 = 501,313.46 : x
  2. Step 2: Convert to fraction form
    909,210.83/1,254,720.78 = 501,313.46/x
  3. Step 3: Cross multiply
    909,210.83x = 1,254,720.78 × 501,313.46
  4. Step 4: Simplify right side
    909,210.83x = 629,008,409,282.10
  5. Step 5: Solve for x
    x = 629,008,409,282.10/909,210.83
  6. Step 6: Final answer
    x = 691,817.99

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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.