Home / 760,125.60-1,139,266.80-338,954.40

Finding the Fourth Proportional to 760,125.60, 1,139,266.80 and 338,954.40

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Solution

The fourth proportional to 760,125.60, 1,139,266.80 and 338,954.40 is: 508,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,125.60 : 1,139,266.80 = 338,954.40 : x
  2. Step 2: Convert to fraction form
    760,125.60/1,139,266.80 = 338,954.40/x
  3. Step 3: Cross multiply
    760,125.60x = 1,139,266.80 × 338,954.40
  4. Step 4: Simplify right side
    760,125.60x = 386,159,494,633.92
  5. Step 5: Solve for x
    x = 386,159,494,633.92/760,125.60
  6. Step 6: Final answer
    x = 508,020.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.