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Finding the Fourth Proportional to 631,779.60, 945,701.10 and 454,632.60

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Solution

The fourth proportional to 631,779.60, 945,701.10 and 454,632.60 is: 680,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,779.60 : 945,701.10 = 454,632.60 : x
  2. Step 2: Convert to fraction form
    631,779.60/945,701.10 = 454,632.60/x
  3. Step 3: Cross multiply
    631,779.60x = 945,701.10 × 454,632.60
  4. Step 4: Simplify right side
    631,779.60x = 429,946,549,915.86
  5. Step 5: Solve for x
    x = 429,946,549,915.86/631,779.60
  6. Step 6: Final answer
    x = 680,532.50

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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.