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Finding the Fourth Proportional to 656,389.60, 984,802.80 and 235,698.40

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Solution

The fourth proportional to 656,389.60, 984,802.80 and 235,698.40 is: 353,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,389.60 : 984,802.80 = 235,698.40 : x
  2. Step 2: Convert to fraction form
    656,389.60/984,802.80 = 235,698.40/x
  3. Step 3: Cross multiply
    656,389.60x = 984,802.80 × 235,698.40
  4. Step 4: Simplify right side
    656,389.60x = 232,116,444,275.52
  5. Step 5: Solve for x
    x = 232,116,444,275.52/656,389.60
  6. Step 6: Final answer
    x = 353,626.02

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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.