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Finding the Fourth Proportional to 528,024.90, 790,870.95 and 278,415.30

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Solution

The fourth proportional to 528,024.90, 790,870.95 and 278,415.30 is: 417,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,024.90 : 790,870.95 = 278,415.30 : x
  2. Step 2: Convert to fraction form
    528,024.90/790,870.95 = 278,415.30/x
  3. Step 3: Cross multiply
    528,024.90x = 790,870.95 × 278,415.30
  4. Step 4: Simplify right side
    528,024.90x = 220,190,572,805.54
  5. Step 5: Solve for x
    x = 220,190,572,805.54/528,024.90
  6. Step 6: Final answer
    x = 417,007.93

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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.