Home / 1,210,187.52-1,670,045.06-666,312.20

Finding the Fourth Proportional to 1,210,187.52, 1,670,045.06 and 666,312.20

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Solution

The fourth proportional to 1,210,187.52, 1,670,045.06 and 666,312.20 is: 919,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,187.52 : 1,670,045.06 = 666,312.20 : x
  2. Step 2: Convert to fraction form
    1,210,187.52/1,670,045.06 = 666,312.20/x
  3. Step 3: Cross multiply
    1,210,187.52x = 1,670,045.06 × 666,312.20
  4. Step 4: Simplify right side
    1,210,187.52x = 1,112,771,398,027.73
  5. Step 5: Solve for x
    x = 1,112,771,398,027.73/1,210,187.52
  6. Step 6: Final answer
    x = 919,503.28

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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.