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Finding the Fourth Proportional to 612,030.60, 915,972.30 and 612,030.60

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Solution

The fourth proportional to 612,030.60, 915,972.30 and 612,030.60 is: 915,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,030.60 : 915,972.30 = 612,030.60 : x
  2. Step 2: Convert to fraction form
    612,030.60/915,972.30 = 612,030.60/x
  3. Step 3: Cross multiply
    612,030.60x = 915,972.30 × 612,030.60
  4. Step 4: Simplify right side
    612,030.60x = 560,603,076,352.38
  5. Step 5: Solve for x
    x = 560,603,076,352.38/612,030.60
  6. Step 6: Final answer
    x = 915,972.30

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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.