Home / 909,921.06-1,255,703.85-502,040.70

Finding the Fourth Proportional to 909,921.06, 1,255,703.85 and 502,040.70

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Solution

The fourth proportional to 909,921.06, 1,255,703.85 and 502,040.70 is: 692,823.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,921.06 : 1,255,703.85 = 502,040.70 : x
  2. Step 2: Convert to fraction form
    909,921.06/1,255,703.85 = 502,040.70/x
  3. Step 3: Cross multiply
    909,921.06x = 1,255,703.85 × 502,040.70
  4. Step 4: Simplify right side
    909,921.06x = 630,414,439,846.70
  5. Step 5: Solve for x
    x = 630,414,439,846.70/909,921.06
  6. Step 6: Final answer
    x = 692,823.22

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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.