Home / 1,064,815.20-1,596,270.78-390,740.09

Finding the Fourth Proportional to 1,064,815.20, 1,596,270.78 and 390,740.09

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Solution

The fourth proportional to 1,064,815.20, 1,596,270.78 and 390,740.09 is: 585,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,815.20 : 1,596,270.78 = 390,740.09 : x
  2. Step 2: Convert to fraction form
    1,064,815.20/1,596,270.78 = 390,740.09/x
  3. Step 3: Cross multiply
    1,064,815.20x = 1,596,270.78 × 390,740.09
  4. Step 4: Simplify right side
    1,064,815.20x = 623,726,980,260.22
  5. Step 5: Solve for x
    x = 623,726,980,260.22/1,064,815.20
  6. Step 6: Final answer
    x = 585,760.78

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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.