Home / 1,175,028-1,621,548.36-638,484

Finding the Fourth Proportional to 1,175,028, 1,621,548.36 and 638,484

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Solution

The fourth proportional to 1,175,028, 1,621,548.36 and 638,484 is: 881,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,028 : 1,621,548.36 = 638,484 : x
  2. Step 2: Convert to fraction form
    1,175,028/1,621,548.36 = 638,484/x
  3. Step 3: Cross multiply
    1,175,028x = 1,621,548.36 × 638,484
  4. Step 4: Simplify right side
    1,175,028x = 1,035,332,683,086.24
  5. Step 5: Solve for x
    x = 1,035,332,683,086.24/1,175,028
  6. Step 6: Final answer
    x = 881,113.20

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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.