Home / 1,385,702.32-1,912,430.54-1,152,717.68

Finding the Fourth Proportional to 1,385,702.32, 1,912,430.54 and 1,152,717.68

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Solution

The fourth proportional to 1,385,702.32, 1,912,430.54 and 1,152,717.68 is: 1,590,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,702.32 : 1,912,430.54 = 1,152,717.68 : x
  2. Step 2: Convert to fraction form
    1,385,702.32/1,912,430.54 = 1,152,717.68/x
  3. Step 3: Cross multiply
    1,385,702.32x = 1,912,430.54 × 1,152,717.68
  4. Step 4: Simplify right side
    1,385,702.32x = 2,204,492,496,408.78
  5. Step 5: Solve for x
    x = 2,204,492,496,408.78/1,385,702.32
  6. Step 6: Final answer
    x = 1,590,884.61

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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.