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Finding the Fourth Proportional to 648,603.70, 972,905.55 and 559,957.30

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Solution

The fourth proportional to 648,603.70, 972,905.55 and 559,957.30 is: 839,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,603.70 : 972,905.55 = 559,957.30 : x
  2. Step 2: Convert to fraction form
    648,603.70/972,905.55 = 559,957.30/x
  3. Step 3: Cross multiply
    648,603.70x = 972,905.55 × 559,957.30
  4. Step 4: Simplify right side
    648,603.70x = 544,785,564,933.02
  5. Step 5: Solve for x
    x = 544,785,564,933.02/648,603.70
  6. Step 6: Final answer
    x = 839,935.95

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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.