Home / 607,112.80-911,252.40-307,931.20

Finding the Fourth Proportional to 607,112.80, 911,252.40 and 307,931.20

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Solution

The fourth proportional to 607,112.80, 911,252.40 and 307,931.20 is: 462,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,112.80 : 911,252.40 = 307,931.20 : x
  2. Step 2: Convert to fraction form
    607,112.80/911,252.40 = 307,931.20/x
  3. Step 3: Cross multiply
    607,112.80x = 911,252.40 × 307,931.20
  4. Step 4: Simplify right side
    607,112.80x = 280,603,045,034.88
  5. Step 5: Solve for x
    x = 280,603,045,034.88/607,112.80
  6. Step 6: Final answer
    x = 462,192.60

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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.