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Finding the Fourth Proportional to 346,476, 518,832.72 and 314,525.28

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Solution

The fourth proportional to 346,476, 518,832.72 and 314,525.28 is: 470,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,476 : 518,832.72 = 314,525.28 : x
  2. Step 2: Convert to fraction form
    346,476/518,832.72 = 314,525.28/x
  3. Step 3: Cross multiply
    346,476x = 518,832.72 × 314,525.28
  4. Step 4: Simplify right side
    346,476x = 163,186,006,531.16
  5. Step 5: Solve for x
    x = 163,186,006,531.16/346,476
  6. Step 6: Final answer
    x = 470,987.91

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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.