Home / 1,216,501.94-1,678,808.03-665,250.05

Finding the Fourth Proportional to 1,216,501.94, 1,678,808.03 and 665,250.05

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Solution

The fourth proportional to 1,216,501.94, 1,678,808.03 and 665,250.05 is: 918,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,501.94 : 1,678,808.03 = 665,250.05 : x
  2. Step 2: Convert to fraction form
    1,216,501.94/1,678,808.03 = 665,250.05/x
  3. Step 3: Cross multiply
    1,216,501.94x = 1,678,808.03 × 665,250.05
  4. Step 4: Simplify right side
    1,216,501.94x = 1,116,827,114,177.61
  5. Step 5: Solve for x
    x = 1,116,827,114,177.61/1,216,501.94
  6. Step 6: Final answer
    x = 918,064.40

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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.