Home / 909,761.96-1,255,451.40-501,864.12

Finding the Fourth Proportional to 909,761.96, 1,255,451.40 and 501,864.12

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Solution

The fourth proportional to 909,761.96, 1,255,451.40 and 501,864.12 is: 692,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,761.96 : 1,255,451.40 = 501,864.12 : x
  2. Step 2: Convert to fraction form
    909,761.96/1,255,451.40 = 501,864.12/x
  3. Step 3: Cross multiply
    909,761.96x = 1,255,451.40 × 501,864.12
  4. Step 4: Simplify right side
    909,761.96x = 630,066,012,063.77
  5. Step 5: Solve for x
    x = 630,066,012,063.77/909,761.96
  6. Step 6: Final answer
    x = 692,561.39

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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.