Home / 1,185,128.49-1,778,037.02-426,955.53

Finding the Fourth Proportional to 1,185,128.49, 1,778,037.02 and 426,955.53

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Solution

The fourth proportional to 1,185,128.49, 1,778,037.02 and 426,955.53 is: 640,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,128.49 : 1,778,037.02 = 426,955.53 : x
  2. Step 2: Convert to fraction form
    1,185,128.49/1,778,037.02 = 426,955.53/x
  3. Step 3: Cross multiply
    1,185,128.49x = 1,778,037.02 × 426,955.53
  4. Step 4: Simplify right side
    1,185,128.49x = 759,142,736,098.94
  5. Step 5: Solve for x
    x = 759,142,736,098.94/1,185,128.49
  6. Step 6: Final answer
    x = 640,557.33

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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.