Home / 909,649.40-1,255,306.06-501,768.42

Finding the Fourth Proportional to 909,649.40, 1,255,306.06 and 501,768.42

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Solution

The fourth proportional to 909,649.40, 1,255,306.06 and 501,768.42 is: 692,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,649.40 : 1,255,306.06 = 501,768.42 : x
  2. Step 2: Convert to fraction form
    909,649.40/1,255,306.06 = 501,768.42/x
  3. Step 3: Cross multiply
    909,649.40x = 1,255,306.06 × 501,768.42
  4. Step 4: Simplify right side
    909,649.40x = 629,872,938,342.63
  5. Step 5: Solve for x
    x = 629,872,938,342.63/909,649.40
  6. Step 6: Final answer
    x = 692,434.84

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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.