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Finding the Fourth Proportional to 652,442.40, 978,663.60 and 463,485.60

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Solution

The fourth proportional to 652,442.40, 978,663.60 and 463,485.60 is: 695,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,442.40 : 978,663.60 = 463,485.60 : x
  2. Step 2: Convert to fraction form
    652,442.40/978,663.60 = 463,485.60/x
  3. Step 3: Cross multiply
    652,442.40x = 978,663.60 × 463,485.60
  4. Step 4: Simplify right side
    652,442.40x = 453,596,485,844.16
  5. Step 5: Solve for x
    x = 453,596,485,844.16/652,442.40
  6. Step 6: Final answer
    x = 695,228.40

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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.