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Finding the Fourth Proportional to 1,032,837.60, 1,549,256.40 and 961,978.80

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Solution

The fourth proportional to 1,032,837.60, 1,549,256.40 and 961,978.80 is: 1,442,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032,837.60 : 1,549,256.40 = 961,978.80 : x
  2. Step 2: Convert to fraction form
    1,032,837.60/1,549,256.40 = 961,978.80/x
  3. Step 3: Cross multiply
    1,032,837.60x = 1,549,256.40 × 961,978.80
  4. Step 4: Simplify right side
    1,032,837.60x = 1,490,351,812,564.32
  5. Step 5: Solve for x
    x = 1,490,351,812,564.32/1,032,837.60
  6. Step 6: Final answer
    x = 1,442,968.20

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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.