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Finding the Fourth Proportional to 545,539.04, 818,308.51 and 208,613.77

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Solution

The fourth proportional to 545,539.04, 818,308.51 and 208,613.77 is: 312,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,539.04 : 818,308.51 = 208,613.77 : x
  2. Step 2: Convert to fraction form
    545,539.04/818,308.51 = 208,613.77/x
  3. Step 3: Cross multiply
    545,539.04x = 818,308.51 × 208,613.77
  4. Step 4: Simplify right side
    545,539.04x = 170,710,423,795.53
  5. Step 5: Solve for x
    x = 170,710,423,795.53/545,539.04
  6. Step 6: Final answer
    x = 312,920.64

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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.