Home / 549,206.47-822,322.93-388,622.35

Finding the Fourth Proportional to 549,206.47, 822,322.93 and 388,622.35

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Solution

The fourth proportional to 549,206.47, 822,322.93 and 388,622.35 is: 581,881.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,206.47 : 822,322.93 = 388,622.35 : x
  2. Step 2: Convert to fraction form
    549,206.47/822,322.93 = 388,622.35/x
  3. Step 3: Cross multiply
    549,206.47x = 822,322.93 × 388,622.35
  4. Step 4: Simplify right side
    549,206.47x = 319,573,069,515.49
  5. Step 5: Solve for x
    x = 319,573,069,515.49/549,206.47
  6. Step 6: Final answer
    x = 581,881.47

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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.