Home / 875,280.90-1,207,852.65-493,386.96

Finding the Fourth Proportional to 875,280.90, 1,207,852.65 and 493,386.96

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Solution

The fourth proportional to 875,280.90, 1,207,852.65 and 493,386.96 is: 680,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,280.90 : 1,207,852.65 = 493,386.96 : x
  2. Step 2: Convert to fraction form
    875,280.90/1,207,852.65 = 493,386.96/x
  3. Step 3: Cross multiply
    875,280.90x = 1,207,852.65 × 493,386.96
  4. Step 4: Simplify right side
    875,280.90x = 595,938,747,111.44
  5. Step 5: Solve for x
    x = 595,938,747,111.44/875,280.90
  6. Step 6: Final answer
    x = 680,854.28

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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.