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Finding the Fourth Proportional to 615,029.60, 920,794.80 and 545,045.60

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Solution

The fourth proportional to 615,029.60, 920,794.80 and 545,045.60 is: 816,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,029.60 : 920,794.80 = 545,045.60 : x
  2. Step 2: Convert to fraction form
    615,029.60/920,794.80 = 545,045.60/x
  3. Step 3: Cross multiply
    615,029.60x = 920,794.80 × 545,045.60
  4. Step 4: Simplify right side
    615,029.60x = 501,875,154,242.88
  5. Step 5: Solve for x
    x = 501,875,154,242.88/615,029.60
  6. Step 6: Final answer
    x = 816,017.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.