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Finding the Fourth Proportional to 883,985.40, 1,325,978.10 and 510,737.40

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Solution

The fourth proportional to 883,985.40, 1,325,978.10 and 510,737.40 is: 766,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,985.40 : 1,325,978.10 = 510,737.40 : x
  2. Step 2: Convert to fraction form
    883,985.40/1,325,978.10 = 510,737.40/x
  3. Step 3: Cross multiply
    883,985.40x = 1,325,978.10 × 510,737.40
  4. Step 4: Simplify right side
    883,985.40x = 677,226,607,250.94
  5. Step 5: Solve for x
    x = 677,226,607,250.94/883,985.40
  6. Step 6: Final answer
    x = 766,106.10

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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.