Home / 1,210,645.04-1,670,669.56-666,831.76

Finding the Fourth Proportional to 1,210,645.04, 1,670,669.56 and 666,831.76

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Solution

The fourth proportional to 1,210,645.04, 1,670,669.56 and 666,831.76 is: 920,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,645.04 : 1,670,669.56 = 666,831.76 : x
  2. Step 2: Convert to fraction form
    1,210,645.04/1,670,669.56 = 666,831.76/x
  3. Step 3: Cross multiply
    1,210,645.04x = 1,670,669.56 × 666,831.76
  4. Step 4: Simplify right side
    1,210,645.04x = 1,114,055,523,073.23
  5. Step 5: Solve for x
    x = 1,114,055,523,073.23/1,210,645.04
  6. Step 6: Final answer
    x = 920,216.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.