Home / 913,373.80-1,260,435.93-499,908.58

Finding the Fourth Proportional to 913,373.80, 1,260,435.93 and 499,908.58

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Solution

The fourth proportional to 913,373.80, 1,260,435.93 and 499,908.58 is: 689,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,373.80 : 1,260,435.93 = 499,908.58 : x
  2. Step 2: Convert to fraction form
    913,373.80/1,260,435.93 = 499,908.58/x
  3. Step 3: Cross multiply
    913,373.80x = 1,260,435.93 × 499,908.58
  4. Step 4: Simplify right side
    913,373.80x = 630,102,735,947.28
  5. Step 5: Solve for x
    x = 630,102,735,947.28/913,373.80
  6. Step 6: Final answer
    x = 689,862.94

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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.