Home / 760,106.15-1,140,188.39-339,385.67

Finding the Fourth Proportional to 760,106.15, 1,140,188.39 and 339,385.67

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Solution

The fourth proportional to 760,106.15, 1,140,188.39 and 339,385.67 is: 509,091.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,106.15 : 1,140,188.39 = 339,385.67 : x
  2. Step 2: Convert to fraction form
    760,106.15/1,140,188.39 = 339,385.67/x
  3. Step 3: Cross multiply
    760,106.15x = 1,140,188.39 × 339,385.67
  4. Step 4: Simplify right side
    760,106.15x = 386,963,593,268.50
  5. Step 5: Solve for x
    x = 386,963,593,268.50/760,106.15
  6. Step 6: Final answer
    x = 509,091.52

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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.