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Finding the Fourth Proportional to 528,601.50, 730,075.56 and 348,120.15

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Solution

The fourth proportional to 528,601.50, 730,075.56 and 348,120.15 is: 480,804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,601.50 : 730,075.56 = 348,120.15 : x
  2. Step 2: Convert to fraction form
    528,601.50/730,075.56 = 348,120.15/x
  3. Step 3: Cross multiply
    528,601.50x = 730,075.56 × 348,120.15
  4. Step 4: Simplify right side
    528,601.50x = 254,154,013,458.53
  5. Step 5: Solve for x
    x = 254,154,013,458.53/528,601.50
  6. Step 6: Final answer
    x = 480,804.56

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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.