Home / 1,407,853.60-2,111,780.40-342,887.20

Finding the Fourth Proportional to 1,407,853.60, 2,111,780.40 and 342,887.20

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Solution

The fourth proportional to 1,407,853.60, 2,111,780.40 and 342,887.20 is: 514,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,853.60 : 2,111,780.40 = 342,887.20 : x
  2. Step 2: Convert to fraction form
    1,407,853.60/2,111,780.40 = 342,887.20/x
  3. Step 3: Cross multiply
    1,407,853.60x = 2,111,780.40 × 342,887.20
  4. Step 4: Simplify right side
    1,407,853.60x = 724,102,468,370.88
  5. Step 5: Solve for x
    x = 724,102,468,370.88/1,407,853.60
  6. Step 6: Final answer
    x = 514,330.80

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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.