Home / 740,007.60-1,110,011.40-440,631.60

Finding the Fourth Proportional to 740,007.60, 1,110,011.40 and 440,631.60

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Solution

The fourth proportional to 740,007.60, 1,110,011.40 and 440,631.60 is: 660,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,007.60 : 1,110,011.40 = 440,631.60 : x
  2. Step 2: Convert to fraction form
    740,007.60/1,110,011.40 = 440,631.60/x
  3. Step 3: Cross multiply
    740,007.60x = 1,110,011.40 × 440,631.60
  4. Step 4: Simplify right side
    740,007.60x = 489,106,099,200.24
  5. Step 5: Solve for x
    x = 489,106,099,200.24/740,007.60
  6. Step 6: Final answer
    x = 660,947.40

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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.