Home / 1,209,955.32-1,816,054.50-611,337.20

Finding the Fourth Proportional to 1,209,955.32, 1,816,054.50 and 611,337.20

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Solution

The fourth proportional to 1,209,955.32, 1,816,054.50 and 611,337.20 is: 917,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,955.32 : 1,816,054.50 = 611,337.20 : x
  2. Step 2: Convert to fraction form
    1,209,955.32/1,816,054.50 = 611,337.20/x
  3. Step 3: Cross multiply
    1,209,955.32x = 1,816,054.50 × 611,337.20
  4. Step 4: Simplify right side
    1,209,955.32x = 1,110,221,669,677.91
  5. Step 5: Solve for x
    x = 1,110,221,669,677.91/1,209,955.32
  6. Step 6: Final answer
    x = 917,572.45

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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.