Home / 811,460.99-1,216,400.51-338,281.67

Finding the Fourth Proportional to 811,460.99, 1,216,400.51 and 338,281.67

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Solution

The fourth proportional to 811,460.99, 1,216,400.51 and 338,281.67 is: 507,092.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,460.99 : 1,216,400.51 = 338,281.67 : x
  2. Step 2: Convert to fraction form
    811,460.99/1,216,400.51 = 338,281.67/x
  3. Step 3: Cross multiply
    811,460.99x = 1,216,400.51 × 338,281.67
  4. Step 4: Simplify right side
    811,460.99x = 411,485,999,798.36
  5. Step 5: Solve for x
    x = 411,485,999,798.36/811,460.99
  6. Step 6: Final answer
    x = 507,092.77

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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.