Home / 1,434,555.20-2,151,329.88-423,407.36

Finding the Fourth Proportional to 1,434,555.20, 2,151,329.88 and 423,407.36

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Solution

The fourth proportional to 1,434,555.20, 2,151,329.88 and 423,407.36 is: 634,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,555.20 : 2,151,329.88 = 423,407.36 : x
  2. Step 2: Convert to fraction form
    1,434,555.20/2,151,329.88 = 423,407.36/x
  3. Step 3: Cross multiply
    1,434,555.20x = 2,151,329.88 × 423,407.36
  4. Step 4: Simplify right side
    1,434,555.20x = 910,888,904,979.92
  5. Step 5: Solve for x
    x = 910,888,904,979.92/1,434,555.20
  6. Step 6: Final answer
    x = 634,962.60

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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.