Home / 1,781,036.40-2,457,970.20-1,102,191.60

Finding the Fourth Proportional to 1,781,036.40, 2,457,970.20 and 1,102,191.60

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Solution

The fourth proportional to 1,781,036.40, 2,457,970.20 and 1,102,191.60 is: 1,521,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,036.40 : 2,457,970.20 = 1,102,191.60 : x
  2. Step 2: Convert to fraction form
    1,781,036.40/2,457,970.20 = 1,102,191.60/x
  3. Step 3: Cross multiply
    1,781,036.40x = 2,457,970.20 × 1,102,191.60
  4. Step 4: Simplify right side
    1,781,036.40x = 2,709,154,107,490.32
  5. Step 5: Solve for x
    x = 2,709,154,107,490.32/1,781,036.40
  6. Step 6: Final answer
    x = 1,521,111.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.