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Finding the Fourth Proportional to 836,740.48, 1,255,644.48 and 304,210.40

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Solution

The fourth proportional to 836,740.48, 1,255,644.48 and 304,210.40 is: 456,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,740.48 : 1,255,644.48 = 304,210.40 : x
  2. Step 2: Convert to fraction form
    836,740.48/1,255,644.48 = 304,210.40/x
  3. Step 3: Cross multiply
    836,740.48x = 1,255,644.48 × 304,210.40
  4. Step 4: Simplify right side
    836,740.48x = 381,980,109,518.59
  5. Step 5: Solve for x
    x = 381,980,109,518.59/836,740.48
  6. Step 6: Final answer
    x = 456,509.66

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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.