Home / 830,417.76-1,145,999.34-508,122

Finding the Fourth Proportional to 830,417.76, 1,145,999.34 and 508,122

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Solution

The fourth proportional to 830,417.76, 1,145,999.34 and 508,122 is: 701,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,417.76 : 1,145,999.34 = 508,122 : x
  2. Step 2: Convert to fraction form
    830,417.76/1,145,999.34 = 508,122/x
  3. Step 3: Cross multiply
    830,417.76x = 1,145,999.34 × 508,122
  4. Step 4: Simplify right side
    830,417.76x = 582,307,476,639.48
  5. Step 5: Solve for x
    x = 582,307,476,639.48/830,417.76
  6. Step 6: Final answer
    x = 701,222.33

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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.