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Finding the Fourth Proportional to 501,903.18, 688,784.40 and 498,360.24

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Solution

The fourth proportional to 501,903.18, 688,784.40 and 498,360.24 is: 683,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,903.18 : 688,784.40 = 498,360.24 : x
  2. Step 2: Convert to fraction form
    501,903.18/688,784.40 = 498,360.24/x
  3. Step 3: Cross multiply
    501,903.18x = 688,784.40 × 498,360.24
  4. Step 4: Simplify right side
    501,903.18x = 343,262,758,892.26
  5. Step 5: Solve for x
    x = 343,262,758,892.26/501,903.18
  6. Step 6: Final answer
    x = 683,922.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.