Home / 913,561.42-1,260,675.02-505,638.94

Finding the Fourth Proportional to 913,561.42, 1,260,675.02 and 505,638.94

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Solution

The fourth proportional to 913,561.42, 1,260,675.02 and 505,638.94 is: 697,759.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,561.42 : 1,260,675.02 = 505,638.94 : x
  2. Step 2: Convert to fraction form
    913,561.42/1,260,675.02 = 505,638.94/x
  3. Step 3: Cross multiply
    913,561.42x = 1,260,675.02 × 505,638.94
  4. Step 4: Simplify right side
    913,561.42x = 637,446,380,797.28
  5. Step 5: Solve for x
    x = 637,446,380,797.28/913,561.42
  6. Step 6: Final answer
    x = 697,759.74

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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.