Home / 723,510.48-1,085,038.13-261,828.86

Finding the Fourth Proportional to 723,510.48, 1,085,038.13 and 261,828.86

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Solution

The fourth proportional to 723,510.48, 1,085,038.13 and 261,828.86 is: 392,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,510.48 : 1,085,038.13 = 261,828.86 : x
  2. Step 2: Convert to fraction form
    723,510.48/1,085,038.13 = 261,828.86/x
  3. Step 3: Cross multiply
    723,510.48x = 1,085,038.13 × 261,828.86
  4. Step 4: Simplify right side
    723,510.48x = 284,094,291,863.81
  5. Step 5: Solve for x
    x = 284,094,291,863.81/723,510.48
  6. Step 6: Final answer
    x = 392,660.92

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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.