Home / 557,579.40-837,025.20-553,642.80

Finding the Fourth Proportional to 557,579.40, 837,025.20 and 553,642.80

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Solution

The fourth proportional to 557,579.40, 837,025.20 and 553,642.80 is: 831,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,579.40 : 837,025.20 = 553,642.80 : x
  2. Step 2: Convert to fraction form
    557,579.40/837,025.20 = 553,642.80/x
  3. Step 3: Cross multiply
    557,579.40x = 837,025.20 × 553,642.80
  4. Step 4: Simplify right side
    557,579.40x = 463,412,975,398.56
  5. Step 5: Solve for x
    x = 463,412,975,398.56/557,579.40
  6. Step 6: Final answer
    x = 831,115.67

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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.