Home / 840,011.98-1,260,015.58-208,925.79

Finding the Fourth Proportional to 840,011.98, 1,260,015.58 and 208,925.79

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Solution

The fourth proportional to 840,011.98, 1,260,015.58 and 208,925.79 is: 313,388.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,011.98 : 1,260,015.58 = 208,925.79 : x
  2. Step 2: Convert to fraction form
    840,011.98/1,260,015.58 = 208,925.79/x
  3. Step 3: Cross multiply
    840,011.98x = 1,260,015.58 × 208,925.79
  4. Step 4: Simplify right side
    840,011.98x = 263,249,750,463.81
  5. Step 5: Solve for x
    x = 263,249,750,463.81/840,011.98
  6. Step 6: Final answer
    x = 313,388.09

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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.