Home / 487,567.28-672,878.02-272,776.50

Finding the Fourth Proportional to 487,567.28, 672,878.02 and 272,776.50

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Solution

The fourth proportional to 487,567.28, 672,878.02 and 272,776.50 is: 376,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,567.28 : 672,878.02 = 272,776.50 : x
  2. Step 2: Convert to fraction form
    487,567.28/672,878.02 = 272,776.50/x
  3. Step 3: Cross multiply
    487,567.28x = 672,878.02 × 272,776.50
  4. Step 4: Simplify right side
    487,567.28x = 183,545,311,222.53
  5. Step 5: Solve for x
    x = 183,545,311,222.53/487,567.28
  6. Step 6: Final answer
    x = 376,451.25

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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.