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Finding the Fourth Proportional to 555,808.74, 767,280.54 and 372,363.18

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Solution

The fourth proportional to 555,808.74, 767,280.54 and 372,363.18 is: 514,038.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,808.74 : 767,280.54 = 372,363.18 : x
  2. Step 2: Convert to fraction form
    555,808.74/767,280.54 = 372,363.18/x
  3. Step 3: Cross multiply
    555,808.74x = 767,280.54 × 372,363.18
  4. Step 4: Simplify right side
    555,808.74x = 285,707,021,826.52
  5. Step 5: Solve for x
    x = 285,707,021,826.52/555,808.74
  6. Step 6: Final answer
    x = 514,038.38

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1.5x scale

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.