Home / 1,435,841.60-2,153,743.20-438,574.40

Finding the Fourth Proportional to 1,435,841.60, 2,153,743.20 and 438,574.40

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Solution

The fourth proportional to 1,435,841.60, 2,153,743.20 and 438,574.40 is: 657,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,841.60 : 2,153,743.20 = 438,574.40 : x
  2. Step 2: Convert to fraction form
    1,435,841.60/2,153,743.20 = 438,574.40/x
  3. Step 3: Cross multiply
    1,435,841.60x = 2,153,743.20 × 438,574.40
  4. Step 4: Simplify right side
    1,435,841.60x = 944,576,631,694.08
  5. Step 5: Solve for x
    x = 944,576,631,694.08/1,435,841.60
  6. Step 6: Final answer
    x = 657,855.74

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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.