Home / 913,340.45-1,260,389.94-499,875.22

Finding the Fourth Proportional to 913,340.45, 1,260,389.94 and 499,875.22

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Solution

The fourth proportional to 913,340.45, 1,260,389.94 and 499,875.22 is: 689,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,340.45 : 1,260,389.94 = 499,875.22 : x
  2. Step 2: Convert to fraction form
    913,340.45/1,260,389.94 = 499,875.22/x
  3. Step 3: Cross multiply
    913,340.45x = 1,260,389.94 × 499,875.22
  4. Step 4: Simplify right side
    913,340.45x = 630,037,701,056.04
  5. Step 5: Solve for x
    x = 630,037,701,056.04/913,340.45
  6. Step 6: Final answer
    x = 689,816.93

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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.