Home / 457,782,315.60-686,673,473.40-407,617,784.40

Finding the Fourth Proportional to 457,782,315.60, 686,673,473.40 and 407,617,784.40

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Solution

The fourth proportional to 457,782,315.60, 686,673,473.40 and 407,617,784.40 is: 611,426,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,782,315.60 : 686,673,473.40 = 407,617,784.40 : x
  2. Step 2: Convert to fraction form
    457,782,315.60/686,673,473.40 = 407,617,784.40/x
  3. Step 3: Cross multiply
    457,782,315.60x = 686,673,473.40 × 407,617,784.40
  4. Step 4: Simplify right side
    457,782,315.60x = 279,900,319,833,560,320
  5. Step 5: Solve for x
    x = 279,900,319,833,560,320/457,782,315.60
  6. Step 6: Final answer
    x = 611,426,676.60

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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.