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Finding the Fourth Proportional to 903,484.86, 1,354,346 and 430,043.10

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Solution

The fourth proportional to 903,484.86, 1,354,346 and 430,043.10 is: 644,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,484.86 : 1,354,346 = 430,043.10 : x
  2. Step 2: Convert to fraction form
    903,484.86/1,354,346 = 430,043.10/x
  3. Step 3: Cross multiply
    903,484.86x = 1,354,346 × 430,043.10
  4. Step 4: Simplify right side
    903,484.86x = 582,427,152,312.60
  5. Step 5: Solve for x
    x = 582,427,152,312.60/903,484.86
  6. Step 6: Final answer
    x = 644,645.17

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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.