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Finding the Fourth Proportional to 999,987.60, 1,495,607.40 and 894,136.80

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Solution

The fourth proportional to 999,987.60, 1,495,607.40 and 894,136.80 is: 1,337,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,987.60 : 1,495,607.40 = 894,136.80 : x
  2. Step 2: Convert to fraction form
    999,987.60/1,495,607.40 = 894,136.80/x
  3. Step 3: Cross multiply
    999,987.60x = 1,495,607.40 × 894,136.80
  4. Step 4: Simplify right side
    999,987.60x = 1,337,277,614,692.32
  5. Step 5: Solve for x
    x = 1,337,277,614,692.32/999,987.60
  6. Step 6: Final answer
    x = 1,337,294.20

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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.