Home / 771,513.50-1,064,641.65-427,329.02

Finding the Fourth Proportional to 771,513.50, 1,064,641.65 and 427,329.02

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Solution

The fourth proportional to 771,513.50, 1,064,641.65 and 427,329.02 is: 589,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,513.50 : 1,064,641.65 = 427,329.02 : x
  2. Step 2: Convert to fraction form
    771,513.50/1,064,641.65 = 427,329.02/x
  3. Step 3: Cross multiply
    771,513.50x = 1,064,641.65 × 427,329.02
  4. Step 4: Simplify right side
    771,513.50x = 454,952,272,945.68
  5. Step 5: Solve for x
    x = 454,952,272,945.68/771,513.50
  6. Step 6: Final answer
    x = 589,688.03

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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.