Home / 938,390.35-1,407,572.37-369,776.39

Finding the Fourth Proportional to 938,390.35, 1,407,572.37 and 369,776.39

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Solution

The fourth proportional to 938,390.35, 1,407,572.37 and 369,776.39 is: 554,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,390.35 : 1,407,572.37 = 369,776.39 : x
  2. Step 2: Convert to fraction form
    938,390.35/1,407,572.37 = 369,776.39/x
  3. Step 3: Cross multiply
    938,390.35x = 1,407,572.37 × 369,776.39
  4. Step 4: Simplify right side
    938,390.35x = 520,487,029,642.34
  5. Step 5: Solve for x
    x = 520,487,029,642.34/938,390.35
  6. Step 6: Final answer
    x = 554,659.40

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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.