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Finding the Fourth Proportional to 294,389.90, 439,320.86 and 292,705.92

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Solution

The fourth proportional to 294,389.90, 439,320.86 and 292,705.92 is: 436,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,389.90 : 439,320.86 = 292,705.92 : x
  2. Step 2: Convert to fraction form
    294,389.90/439,320.86 = 292,705.92/x
  3. Step 3: Cross multiply
    294,389.90x = 439,320.86 × 292,705.92
  4. Step 4: Simplify right side
    294,389.90x = 128,591,816,501.49
  5. Step 5: Solve for x
    x = 128,591,816,501.49/294,389.90
  6. Step 6: Final answer
    x = 436,807.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.