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Finding the Fourth Proportional to 346,492.04, 478,617.92 and 278,764.16

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Solution

The fourth proportional to 346,492.04, 478,617.92 and 278,764.16 is: 385,063.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,492.04 : 478,617.92 = 278,764.16 : x
  2. Step 2: Convert to fraction form
    346,492.04/478,617.92 = 278,764.16/x
  3. Step 3: Cross multiply
    346,492.04x = 478,617.92 × 278,764.16
  4. Step 4: Simplify right side
    346,492.04x = 133,421,522,429.75
  5. Step 5: Solve for x
    x = 133,421,522,429.75/346,492.04
  6. Step 6: Final answer
    x = 385,063.74

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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.