Home / 909,320.70-1,254,937.28-501,502.31

Finding the Fourth Proportional to 909,320.70, 1,254,937.28 and 501,502.31

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Solution

The fourth proportional to 909,320.70, 1,254,937.28 and 501,502.31 is: 692,114.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,320.70 : 1,254,937.28 = 501,502.31 : x
  2. Step 2: Convert to fraction form
    909,320.70/1,254,937.28 = 501,502.31/x
  3. Step 3: Cross multiply
    909,320.70x = 1,254,937.28 × 501,502.31
  4. Step 4: Simplify right side
    909,320.70x = 629,353,944,825.12
  5. Step 5: Solve for x
    x = 629,353,944,825.12/909,320.70
  6. Step 6: Final answer
    x = 692,114.39

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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.