Home / 1,070,211.40-1,603,956.30-438,411.40

Finding the Fourth Proportional to 1,070,211.40, 1,603,956.30 and 438,411.40

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Solution

The fourth proportional to 1,070,211.40, 1,603,956.30 and 438,411.40 is: 657,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,211.40 : 1,603,956.30 = 438,411.40 : x
  2. Step 2: Convert to fraction form
    1,070,211.40/1,603,956.30 = 438,411.40/x
  3. Step 3: Cross multiply
    1,070,211.40x = 1,603,956.30 × 438,411.40
  4. Step 4: Simplify right side
    1,070,211.40x = 703,192,727,021.82
  5. Step 5: Solve for x
    x = 703,192,727,021.82/1,070,211.40
  6. Step 6: Final answer
    x = 657,059.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.