Home / 718,547.12-1,078,529.76-381,586.80

Finding the Fourth Proportional to 718,547.12, 1,078,529.76 and 381,586.80

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Solution

The fourth proportional to 718,547.12, 1,078,529.76 and 381,586.80 is: 572,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,547.12 : 1,078,529.76 = 381,586.80 : x
  2. Step 2: Convert to fraction form
    718,547.12/1,078,529.76 = 381,586.80/x
  3. Step 3: Cross multiply
    718,547.12x = 1,078,529.76 × 381,586.80
  4. Step 4: Simplify right side
    718,547.12x = 411,552,719,823.17
  5. Step 5: Solve for x
    x = 411,552,719,823.17/718,547.12
  6. Step 6: Final answer
    x = 572,756.76

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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.