Home / 1,210,307.60-1,670,236.92-666,494

Finding the Fourth Proportional to 1,210,307.60, 1,670,236.92 and 666,494

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Solution

The fourth proportional to 1,210,307.60, 1,670,236.92 and 666,494 is: 919,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,307.60 : 1,670,236.92 = 666,494 : x
  2. Step 2: Convert to fraction form
    1,210,307.60/1,670,236.92 = 666,494/x
  3. Step 3: Cross multiply
    1,210,307.60x = 1,670,236.92 × 666,494
  4. Step 4: Simplify right side
    1,210,307.60x = 1,113,202,885,758.48
  5. Step 5: Solve for x
    x = 1,113,202,885,758.48/1,210,307.60
  6. Step 6: Final answer
    x = 919,768.57

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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.