Home / 487,276.98-672,457.05-272,426.10

Finding the Fourth Proportional to 487,276.98, 672,457.05 and 272,426.10

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Solution

The fourth proportional to 487,276.98, 672,457.05 and 272,426.10 is: 375,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,276.98 : 672,457.05 = 272,426.10 : x
  2. Step 2: Convert to fraction form
    487,276.98/672,457.05 = 272,426.10/x
  3. Step 3: Cross multiply
    487,276.98x = 672,457.05 × 272,426.10
  4. Step 4: Simplify right side
    487,276.98x = 183,194,851,549.01
  5. Step 5: Solve for x
    x = 183,194,851,549.01/487,276.98
  6. Step 6: Final answer
    x = 375,956.30

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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.