Home / 1,434,555.70-2,151,330.63-423,407.86

Finding the Fourth Proportional to 1,434,555.70, 2,151,330.63 and 423,407.86

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Solution

The fourth proportional to 1,434,555.70, 2,151,330.63 and 423,407.86 is: 634,963.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,555.70 : 2,151,330.63 = 423,407.86 : x
  2. Step 2: Convert to fraction form
    1,434,555.70/2,151,330.63 = 423,407.86/x
  3. Step 3: Cross multiply
    1,434,555.70x = 2,151,330.63 × 423,407.86
  4. Step 4: Simplify right side
    1,434,555.70x = 910,890,298,200.75
  5. Step 5: Solve for x
    x = 910,890,298,200.75/1,434,555.70
  6. Step 6: Final answer
    x = 634,963.35

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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.