Home / 607,749.10-912,444.45-355,288.30

Finding the Fourth Proportional to 607,749.10, 912,444.45 and 355,288.30

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Solution

The fourth proportional to 607,749.10, 912,444.45 and 355,288.30 is: 533,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,749.10 : 912,444.45 = 355,288.30 : x
  2. Step 2: Convert to fraction form
    607,749.10/912,444.45 = 355,288.30/x
  3. Step 3: Cross multiply
    607,749.10x = 912,444.45 × 355,288.30
  4. Step 4: Simplify right side
    607,749.10x = 324,180,837,484.94
  5. Step 5: Solve for x
    x = 324,180,837,484.94/607,749.10
  6. Step 6: Final answer
    x = 533,412.29

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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.