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Finding the Fourth Proportional to 908,340.80, 1,362,316.80 and 402,900.80

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Solution

The fourth proportional to 908,340.80, 1,362,316.80 and 402,900.80 is: 604,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,340.80 : 1,362,316.80 = 402,900.80 : x
  2. Step 2: Convert to fraction form
    908,340.80/1,362,316.80 = 402,900.80/x
  3. Step 3: Cross multiply
    908,340.80x = 1,362,316.80 × 402,900.80
  4. Step 4: Simplify right side
    908,340.80x = 548,878,528,573.44
  5. Step 5: Solve for x
    x = 548,878,528,573.44/908,340.80
  6. Step 6: Final answer
    x = 604,264.97

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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.