Home / 388,979.40-583,469.10-93,491.40

Finding the Fourth Proportional to 388,979.40, 583,469.10 and 93,491.40

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Solution

The fourth proportional to 388,979.40, 583,469.10 and 93,491.40 is: 140,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,979.40 : 583,469.10 = 93,491.40 : x
  2. Step 2: Convert to fraction form
    388,979.40/583,469.10 = 93,491.40/x
  3. Step 3: Cross multiply
    388,979.40x = 583,469.10 × 93,491.40
  4. Step 4: Simplify right side
    388,979.40x = 54,549,343,015.74
  5. Step 5: Solve for x
    x = 54,549,343,015.74/388,979.40
  6. Step 6: Final answer
    x = 140,237.10

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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.