Home / 926,621.87-1,390,831.59-447,187.11

Finding the Fourth Proportional to 926,621.87, 1,390,831.59 and 447,187.11

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Solution

The fourth proportional to 926,621.87, 1,390,831.59 and 447,187.11 is: 671,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,621.87 : 1,390,831.59 = 447,187.11 : x
  2. Step 2: Convert to fraction form
    926,621.87/1,390,831.59 = 447,187.11/x
  3. Step 3: Cross multiply
    926,621.87x = 1,390,831.59 × 447,187.11
  4. Step 4: Simplify right side
    926,621.87x = 621,961,959,228.81
  5. Step 5: Solve for x
    x = 621,961,959,228.81/926,621.87
  6. Step 6: Final answer
    x = 671,214.42

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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.