Home / 556,785.04-834,905.40-388,386.04

Finding the Fourth Proportional to 556,785.04, 834,905.40 and 388,386.04

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Solution

The fourth proportional to 556,785.04, 834,905.40 and 388,386.04 is: 582,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,785.04 : 834,905.40 = 388,386.04 : x
  2. Step 2: Convert to fraction form
    556,785.04/834,905.40 = 388,386.04/x
  3. Step 3: Cross multiply
    556,785.04x = 834,905.40 × 388,386.04
  4. Step 4: Simplify right side
    556,785.04x = 324,265,602,080.62
  5. Step 5: Solve for x
    x = 324,265,602,080.62/556,785.04
  6. Step 6: Final answer
    x = 582,389.21

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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.