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Finding the Fourth Proportional to 647,488.64, 893,300.03 and 375,406.70

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Solution

The fourth proportional to 647,488.64, 893,300.03 and 375,406.70 is: 517,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,488.64 : 893,300.03 = 375,406.70 : x
  2. Step 2: Convert to fraction form
    647,488.64/893,300.03 = 375,406.70/x
  3. Step 3: Cross multiply
    647,488.64x = 893,300.03 × 375,406.70
  4. Step 4: Simplify right side
    647,488.64x = 335,350,810,028.67
  5. Step 5: Solve for x
    x = 335,350,810,028.67/647,488.64
  6. Step 6: Final answer
    x = 517,925.40

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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.