Home / 906,329.07-1,250,709.15-498,430.86

Finding the Fourth Proportional to 906,329.07, 1,250,709.15 and 498,430.86

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Solution

The fourth proportional to 906,329.07, 1,250,709.15 and 498,430.86 is: 687,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,329.07 : 1,250,709.15 = 498,430.86 : x
  2. Step 2: Convert to fraction form
    906,329.07/1,250,709.15 = 498,430.86/x
  3. Step 3: Cross multiply
    906,329.07x = 1,250,709.15 × 498,430.86
  4. Step 4: Simplify right side
    906,329.07x = 623,392,037,878.99
  5. Step 5: Solve for x
    x = 623,392,037,878.99/906,329.07
  6. Step 6: Final answer
    x = 687,820.86

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1.5x scale

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.