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Finding the Fourth Proportional to 652,303.09, 900,276.69 and 397,801.90

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Solution

The fourth proportional to 652,303.09, 900,276.69 and 397,801.90 is: 549,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,303.09 : 900,276.69 = 397,801.90 : x
  2. Step 2: Convert to fraction form
    652,303.09/900,276.69 = 397,801.90/x
  3. Step 3: Cross multiply
    652,303.09x = 900,276.69 × 397,801.90
  4. Step 4: Simplify right side
    652,303.09x = 358,131,777,807.71
  5. Step 5: Solve for x
    x = 358,131,777,807.71/652,303.09
  6. Step 6: Final answer
    x = 549,026.65

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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.