Home / 678,012.02-1,017,018.08-528,364.32

Finding the Fourth Proportional to 678,012.02, 1,017,018.08 and 528,364.32

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Solution

The fourth proportional to 678,012.02, 1,017,018.08 and 528,364.32 is: 792,546.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,012.02 : 1,017,018.08 = 528,364.32 : x
  2. Step 2: Convert to fraction form
    678,012.02/1,017,018.08 = 528,364.32/x
  3. Step 3: Cross multiply
    678,012.02x = 1,017,018.08 × 528,364.32
  4. Step 4: Simplify right side
    678,012.02x = 537,356,061,792.63
  5. Step 5: Solve for x
    x = 537,356,061,792.63/678,012.02
  6. Step 6: Final answer
    x = 792,546.51

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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.