Home / 3,118,877.16-4,678,485.80-988,807.20

Finding the Fourth Proportional to 3,118,877.16, 4,678,485.80 and 988,807.20

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Solution

The fourth proportional to 3,118,877.16, 4,678,485.80 and 988,807.20 is: 1,483,264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,877.16 : 4,678,485.80 = 988,807.20 : x
  2. Step 2: Convert to fraction form
    3,118,877.16/4,678,485.80 = 988,807.20/x
  3. Step 3: Cross multiply
    3,118,877.16x = 4,678,485.80 × 988,807.20
  4. Step 4: Simplify right side
    3,118,877.16x = 4,626,120,444,137.76
  5. Step 5: Solve for x
    x = 4,626,120,444,137.76/3,118,877.16
  6. Step 6: Final answer
    x = 1,483,264.72

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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.