Home / 843,421.16-1,264,990.80-369,979.40

Finding the Fourth Proportional to 843,421.16, 1,264,990.80 and 369,979.40

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Solution

The fourth proportional to 843,421.16, 1,264,990.80 and 369,979.40 is: 554,907.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,421.16 : 1,264,990.80 = 369,979.40 : x
  2. Step 2: Convert to fraction form
    843,421.16/1,264,990.80 = 369,979.40/x
  3. Step 3: Cross multiply
    843,421.16x = 1,264,990.80 × 369,979.40
  4. Step 4: Simplify right side
    843,421.16x = 468,020,537,189.52
  5. Step 5: Solve for x
    x = 468,020,537,189.52/843,421.16
  6. Step 6: Final answer
    x = 554,907.27

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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.