Home / 628,475.81-867,316.14-356,555.16

Finding the Fourth Proportional to 628,475.81, 867,316.14 and 356,555.16

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Solution

The fourth proportional to 628,475.81, 867,316.14 and 356,555.16 is: 492,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,475.81 : 867,316.14 = 356,555.16 : x
  2. Step 2: Convert to fraction form
    628,475.81/867,316.14 = 356,555.16/x
  3. Step 3: Cross multiply
    628,475.81x = 867,316.14 × 356,555.16
  4. Step 4: Simplify right side
    628,475.81x = 309,246,045,068.28
  5. Step 5: Solve for x
    x = 309,246,045,068.28/628,475.81
  6. Step 6: Final answer
    x = 492,057.20

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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.