Home / 489,928,007.60-734,892,011.40-432,532,379.60

Finding the Fourth Proportional to 489,928,007.60, 734,892,011.40 and 432,532,379.60

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Solution

The fourth proportional to 489,928,007.60, 734,892,011.40 and 432,532,379.60 is: 648,798,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,928,007.60 : 734,892,011.40 = 432,532,379.60 : x
  2. Step 2: Convert to fraction form
    489,928,007.60/734,892,011.40 = 432,532,379.60/x
  3. Step 3: Cross multiply
    489,928,007.60x = 734,892,011.40 × 432,532,379.60
  4. Step 4: Simplify right side
    489,928,007.60x = 317,864,590,439,872,320
  5. Step 5: Solve for x
    x = 317,864,590,439,872,320/489,928,007.60
  6. Step 6: Final answer
    x = 648,798,569.40

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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.