Home / 905,421.36-1,249,408.34-523,472.74

Finding the Fourth Proportional to 905,421.36, 1,249,408.34 and 523,472.74

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Solution

The fourth proportional to 905,421.36, 1,249,408.34 and 523,472.74 is: 722,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,421.36 : 1,249,408.34 = 523,472.74 : x
  2. Step 2: Convert to fraction form
    905,421.36/1,249,408.34 = 523,472.74/x
  3. Step 3: Cross multiply
    905,421.36x = 1,249,408.34 × 523,472.74
  4. Step 4: Simplify right side
    905,421.36x = 654,031,207,118.65
  5. Step 5: Solve for x
    x = 654,031,207,118.65/905,421.36
  6. Step 6: Final answer
    x = 722,350.10

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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.