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Finding the Fourth Proportional to 862,500, 1,292,038.62 and 406,466.76

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Solution

The fourth proportional to 862,500, 1,292,038.62 and 406,466.76 is: 608,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,500 : 1,292,038.62 = 406,466.76 : x
  2. Step 2: Convert to fraction form
    862,500/1,292,038.62 = 406,466.76/x
  3. Step 3: Cross multiply
    862,500x = 1,292,038.62 × 406,466.76
  4. Step 4: Simplify right side
    862,500x = 525,170,751,666.27
  5. Step 5: Solve for x
    x = 525,170,751,666.27/862,500
  6. Step 6: Final answer
    x = 608,893.63

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1.5x scale

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.