Home / 487,407.32-672,618.30-272,547.80

Finding the Fourth Proportional to 487,407.32, 672,618.30 and 272,547.80

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Solution

The fourth proportional to 487,407.32, 672,618.30 and 272,547.80 is: 376,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,407.32 : 672,618.30 = 272,547.80 : x
  2. Step 2: Convert to fraction form
    487,407.32/672,618.30 = 272,547.80/x
  3. Step 3: Cross multiply
    487,407.32x = 672,618.30 × 272,547.80
  4. Step 4: Simplify right side
    487,407.32x = 183,320,637,904.74
  5. Step 5: Solve for x
    x = 183,320,637,904.74/487,407.32
  6. Step 6: Final answer
    x = 376,113.84

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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.