Home / 407,124.86-561,315.69-290,976.93

Finding the Fourth Proportional to 407,124.86, 561,315.69 and 290,976.93

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Solution

The fourth proportional to 407,124.86, 561,315.69 and 290,976.93 is: 401,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,124.86 : 561,315.69 = 290,976.93 : x
  2. Step 2: Convert to fraction form
    407,124.86/561,315.69 = 290,976.93/x
  3. Step 3: Cross multiply
    407,124.86x = 561,315.69 × 290,976.93
  4. Step 4: Simplify right side
    407,124.86x = 163,329,916,237.03
  5. Step 5: Solve for x
    x = 163,329,916,237.03/407,124.86
  6. Step 6: Final answer
    x = 401,178.94

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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.