Home / 1,210,010.40-1,671,310.80-887,209.20

Finding the Fourth Proportional to 1,210,010.40, 1,671,310.80 and 887,209.20

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Solution

The fourth proportional to 1,210,010.40, 1,671,310.80 and 887,209.20 is: 1,225,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,010.40 : 1,671,310.80 = 887,209.20 : x
  2. Step 2: Convert to fraction form
    1,210,010.40/1,671,310.80 = 887,209.20/x
  3. Step 3: Cross multiply
    1,210,010.40x = 1,671,310.80 × 887,209.20
  4. Step 4: Simplify right side
    1,210,010.40x = 1,482,802,317,819.36
  5. Step 5: Solve for x
    x = 1,482,802,317,819.36/1,210,010.40
  6. Step 6: Final answer
    x = 1,225,445.93

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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.