Home / 478,300,479.40-717,450,719.10-437,485,810.60

Finding the Fourth Proportional to 478,300,479.40, 717,450,719.10 and 437,485,810.60

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Solution

The fourth proportional to 478,300,479.40, 717,450,719.10 and 437,485,810.60 is: 656,228,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,300,479.40 : 717,450,719.10 = 437,485,810.60 : x
  2. Step 2: Convert to fraction form
    478,300,479.40/717,450,719.10 = 437,485,810.60/x
  3. Step 3: Cross multiply
    478,300,479.40x = 717,450,719.10 × 437,485,810.60
  4. Step 4: Simplify right side
    478,300,479.40x = 313,874,509,411,016,448
  5. Step 5: Solve for x
    x = 313,874,509,411,016,448/478,300,479.40
  6. Step 6: Final answer
    x = 656,228,715.90

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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.