Home / 489,017,256.40-733,525,884.60-440,644,315.60

Finding the Fourth Proportional to 489,017,256.40, 733,525,884.60 and 440,644,315.60

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Solution

The fourth proportional to 489,017,256.40, 733,525,884.60 and 440,644,315.60 is: 660,966,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,017,256.40 : 733,525,884.60 = 440,644,315.60 : x
  2. Step 2: Convert to fraction form
    489,017,256.40/733,525,884.60 = 440,644,315.60/x
  3. Step 3: Cross multiply
    489,017,256.40x = 733,525,884.60 × 440,644,315.60
  4. Step 4: Simplify right side
    489,017,256.40x = 323,224,011,394,451,584
  5. Step 5: Solve for x
    x = 323,224,011,394,451,584/489,017,256.40
  6. Step 6: Final answer
    x = 660,966,473.40

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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.