Home / 402,930,452.40-604,395,678.60-393,972,500.40

Finding the Fourth Proportional to 402,930,452.40, 604,395,678.60 and 393,972,500.40

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Solution

The fourth proportional to 402,930,452.40, 604,395,678.60 and 393,972,500.40 is: 590,958,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930,452.40 : 604,395,678.60 = 393,972,500.40 : x
  2. Step 2: Convert to fraction form
    402,930,452.40/604,395,678.60 = 393,972,500.40/x
  3. Step 3: Cross multiply
    402,930,452.40x = 604,395,678.60 × 393,972,500.40
  4. Step 4: Simplify right side
    402,930,452.40x = 238,115,276,728,996,768
  5. Step 5: Solve for x
    x = 238,115,276,728,996,768/402,930,452.40
  6. Step 6: Final answer
    x = 590,958,750.60

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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.