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Finding the Fourth Proportional to 671,145.47, 926,180.88 and 369,339.47

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Solution

The fourth proportional to 671,145.47, 926,180.88 and 369,339.47 is: 509,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,145.47 : 926,180.88 = 369,339.47 : x
  2. Step 2: Convert to fraction form
    671,145.47/926,180.88 = 369,339.47/x
  3. Step 3: Cross multiply
    671,145.47x = 926,180.88 × 369,339.47
  4. Step 4: Simplify right side
    671,145.47x = 342,075,155,343.33
  5. Step 5: Solve for x
    x = 342,075,155,343.33/671,145.47
  6. Step 6: Final answer
    x = 509,688.54

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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.