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Finding the Fourth Proportional to 528,280.92, 792,545.76 and 420,617.48

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Solution

The fourth proportional to 528,280.92, 792,545.76 and 420,617.48 is: 631,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,280.92 : 792,545.76 = 420,617.48 : x
  2. Step 2: Convert to fraction form
    528,280.92/792,545.76 = 420,617.48/x
  3. Step 3: Cross multiply
    528,280.92x = 792,545.76 × 420,617.48
  4. Step 4: Simplify right side
    528,280.92x = 333,358,596,393.16
  5. Step 5: Solve for x
    x = 333,358,596,393.16/528,280.92
  6. Step 6: Final answer
    x = 631,025.24

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1.5x scale

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.