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Finding the Fourth Proportional to 478,596.16, 660,454.18 and 260,806.74

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Solution

The fourth proportional to 478,596.16, 660,454.18 and 260,806.74 is: 359,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,596.16 : 660,454.18 = 260,806.74 : x
  2. Step 2: Convert to fraction form
    478,596.16/660,454.18 = 260,806.74/x
  3. Step 3: Cross multiply
    478,596.16x = 660,454.18 × 260,806.74
  4. Step 4: Simplify right side
    478,596.16x = 172,250,901,605.17
  5. Step 5: Solve for x
    x = 172,250,901,605.17/478,596.16
  6. Step 6: Final answer
    x = 359,908.66

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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.