Home / 909,430.74-1,254,993.62-501,520.95

Finding the Fourth Proportional to 909,430.74, 1,254,993.62 and 501,520.95

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Solution

The fourth proportional to 909,430.74, 1,254,993.62 and 501,520.95 is: 692,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,430.74 : 1,254,993.62 = 501,520.95 : x
  2. Step 2: Convert to fraction form
    909,430.74/1,254,993.62 = 501,520.95/x
  3. Step 3: Cross multiply
    909,430.74x = 1,254,993.62 × 501,520.95
  4. Step 4: Simplify right side
    909,430.74x = 629,405,590,038.73
  5. Step 5: Solve for x
    x = 629,405,590,038.73/909,430.74
  6. Step 6: Final answer
    x = 692,087.44

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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.