Home / 909,209.45-1,254,718.88-501,312.08

Finding the Fourth Proportional to 909,209.45, 1,254,718.88 and 501,312.08

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Solution

The fourth proportional to 909,209.45, 1,254,718.88 and 501,312.08 is: 691,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,209.45 : 1,254,718.88 = 501,312.08 : x
  2. Step 2: Convert to fraction form
    909,209.45/1,254,718.88 = 501,312.08/x
  3. Step 3: Cross multiply
    909,209.45x = 1,254,718.88 × 501,312.08
  4. Step 4: Simplify right side
    909,209.45x = 629,005,731,548.07
  5. Step 5: Solve for x
    x = 629,005,731,548.07/909,209.45
  6. Step 6: Final answer
    x = 691,816.10

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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.