Home / 1,200,008-1,656,045.60-663,498.56

Finding the Fourth Proportional to 1,200,008, 1,656,045.60 and 663,498.56

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Solution

The fourth proportional to 1,200,008, 1,656,045.60 and 663,498.56 is: 915,647.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,008 : 1,656,045.60 = 663,498.56 : x
  2. Step 2: Convert to fraction form
    1,200,008/1,656,045.60 = 663,498.56/x
  3. Step 3: Cross multiply
    1,200,008x = 1,656,045.60 × 663,498.56
  4. Step 4: Simplify right side
    1,200,008x = 1,098,783,870,894.34
  5. Step 5: Solve for x
    x = 1,098,783,870,894.34/1,200,008
  6. Step 6: Final answer
    x = 915,647.12

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1.5x scale

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.