Home / 1,657,686.80-2,486,530.20-947,786.60

Finding the Fourth Proportional to 1,657,686.80, 2,486,530.20 and 947,786.60

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Solution

The fourth proportional to 1,657,686.80, 2,486,530.20 and 947,786.60 is: 1,421,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,686.80 : 2,486,530.20 = 947,786.60 : x
  2. Step 2: Convert to fraction form
    1,657,686.80/2,486,530.20 = 947,786.60/x
  3. Step 3: Cross multiply
    1,657,686.80x = 2,486,530.20 × 947,786.60
  4. Step 4: Simplify right side
    1,657,686.80x = 2,356,700,004,055.32
  5. Step 5: Solve for x
    x = 2,356,700,004,055.32/1,657,686.80
  6. Step 6: Final answer
    x = 1,421,679.90

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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.