Home / 877,479.75-1,316,053.17-427,748.31

Finding the Fourth Proportional to 877,479.75, 1,316,053.17 and 427,748.31

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Solution

The fourth proportional to 877,479.75, 1,316,053.17 and 427,748.31 is: 641,541.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,479.75 : 1,316,053.17 = 427,748.31 : x
  2. Step 2: Convert to fraction form
    877,479.75/1,316,053.17 = 427,748.31/x
  3. Step 3: Cross multiply
    877,479.75x = 1,316,053.17 × 427,748.31
  4. Step 4: Simplify right side
    877,479.75x = 562,939,519,337.64
  5. Step 5: Solve for x
    x = 562,939,519,337.64/877,479.75
  6. Step 6: Final answer
    x = 641,541.32

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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.