Home / 715,828.71-1,071,406.59-526,238.88

Finding the Fourth Proportional to 715,828.71, 1,071,406.59 and 526,238.88

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Solution

The fourth proportional to 715,828.71, 1,071,406.59 and 526,238.88 is: 787,640.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,828.71 : 1,071,406.59 = 526,238.88 : x
  2. Step 2: Convert to fraction form
    715,828.71/1,071,406.59 = 526,238.88/x
  3. Step 3: Cross multiply
    715,828.71x = 1,071,406.59 × 526,238.88
  4. Step 4: Simplify right side
    715,828.71x = 563,815,803,946.22
  5. Step 5: Solve for x
    x = 563,815,803,946.22/715,828.71
  6. Step 6: Final answer
    x = 787,640.67

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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.