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Finding the Fourth Proportional to 495,228.51, 680,784.18 and 426,063.74

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Solution

The fourth proportional to 495,228.51, 680,784.18 and 426,063.74 is: 585,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,228.51 : 680,784.18 = 426,063.74 : x
  2. Step 2: Convert to fraction form
    495,228.51/680,784.18 = 426,063.74/x
  3. Step 3: Cross multiply
    495,228.51x = 680,784.18 × 426,063.74
  4. Step 4: Simplify right side
    495,228.51x = 290,057,450,459.71
  5. Step 5: Solve for x
    x = 290,057,450,459.71/495,228.51
  6. Step 6: Final answer
    x = 585,704.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.