Home / 830,148.48-1,145,527.20-490,551.84

Finding the Fourth Proportional to 830,148.48, 1,145,527.20 and 490,551.84

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Solution

The fourth proportional to 830,148.48, 1,145,527.20 and 490,551.84 is: 676,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,148.48 : 1,145,527.20 = 490,551.84 : x
  2. Step 2: Convert to fraction form
    830,148.48/1,145,527.20 = 490,551.84/x
  3. Step 3: Cross multiply
    830,148.48x = 1,145,527.20 × 490,551.84
  4. Step 4: Simplify right side
    830,148.48x = 561,940,475,730.05
  5. Step 5: Solve for x
    x = 561,940,475,730.05/830,148.48
  6. Step 6: Final answer
    x = 676,915.62

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Double scale
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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.