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Finding the Fourth Proportional to 528,082.55, 792,123.83 and 440,602.55

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Solution

The fourth proportional to 528,082.55, 792,123.83 and 440,602.55 is: 660,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,082.55 : 792,123.83 = 440,602.55 : x
  2. Step 2: Convert to fraction form
    528,082.55/792,123.83 = 440,602.55/x
  3. Step 3: Cross multiply
    528,082.55x = 792,123.83 × 440,602.55
  4. Step 4: Simplify right side
    528,082.55x = 349,011,779,413.77
  5. Step 5: Solve for x
    x = 349,011,779,413.77/528,082.55
  6. Step 6: Final answer
    x = 660,903.83

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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.