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Finding the Fourth Proportional to 575,815.20, 857,813.13 and 549,907.56

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Solution

The fourth proportional to 575,815.20, 857,813.13 and 549,907.56 is: 819,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,815.20 : 857,813.13 = 549,907.56 : x
  2. Step 2: Convert to fraction form
    575,815.20/857,813.13 = 549,907.56/x
  3. Step 3: Cross multiply
    575,815.20x = 857,813.13 × 549,907.56
  4. Step 4: Simplify right side
    575,815.20x = 471,717,925,254.26
  5. Step 5: Solve for x
    x = 471,717,925,254.26/575,815.20
  6. Step 6: Final answer
    x = 819,217.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.