Home / 760,501.67-1,140,905.33-280,732.47

Finding the Fourth Proportional to 760,501.67, 1,140,905.33 and 280,732.47

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Solution

The fourth proportional to 760,501.67, 1,140,905.33 and 280,732.47 is: 421,155.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,501.67 : 1,140,905.33 = 280,732.47 : x
  2. Step 2: Convert to fraction form
    760,501.67/1,140,905.33 = 280,732.47/x
  3. Step 3: Cross multiply
    760,501.67x = 1,140,905.33 × 280,732.47
  4. Step 4: Simplify right side
    760,501.67x = 320,289,172,028.90
  5. Step 5: Solve for x
    x = 320,289,172,028.90/760,501.67
  6. Step 6: Final answer
    x = 421,155.12

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1.5x scale

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.