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Finding the Fourth Proportional to 720,244.46, 993,852.09 and 429,802.20

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Solution

The fourth proportional to 720,244.46, 993,852.09 and 429,802.20 is: 593,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,244.46 : 993,852.09 = 429,802.20 : x
  2. Step 2: Convert to fraction form
    720,244.46/993,852.09 = 429,802.20/x
  3. Step 3: Cross multiply
    720,244.46x = 993,852.09 × 429,802.20
  4. Step 4: Simplify right side
    720,244.46x = 427,159,818,483.54
  5. Step 5: Solve for x
    x = 427,159,818,483.54/720,244.46
  6. Step 6: Final answer
    x = 593,076.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.