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Finding the Fourth Proportional to 630,133.60, 945,814.80 and 314,946.40

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Solution

The fourth proportional to 630,133.60, 945,814.80 and 314,946.40 is: 472,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,133.60 : 945,814.80 = 314,946.40 : x
  2. Step 2: Convert to fraction form
    630,133.60/945,814.80 = 314,946.40/x
  3. Step 3: Cross multiply
    630,133.60x = 945,814.80 × 314,946.40
  4. Step 4: Simplify right side
    630,133.60x = 297,880,966,326.72
  5. Step 5: Solve for x
    x = 297,880,966,326.72/630,133.60
  6. Step 6: Final answer
    x = 472,726.68

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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.