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Finding the Fourth Proportional to 570,657.34, 787,478.65 and 328,925.26

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Solution

The fourth proportional to 570,657.34, 787,478.65 and 328,925.26 is: 453,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,657.34 : 787,478.65 = 328,925.26 : x
  2. Step 2: Convert to fraction form
    570,657.34/787,478.65 = 328,925.26/x
  3. Step 3: Cross multiply
    570,657.34x = 787,478.65 × 328,925.26
  4. Step 4: Simplify right side
    570,657.34x = 259,021,619,695.70
  5. Step 5: Solve for x
    x = 259,021,619,695.70/570,657.34
  6. Step 6: Final answer
    x = 453,900.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.