Home / 920,880.52-1,270,828.23-528,477.36

Finding the Fourth Proportional to 920,880.52, 1,270,828.23 and 528,477.36

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Solution

The fourth proportional to 920,880.52, 1,270,828.23 and 528,477.36 is: 729,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,880.52 : 1,270,828.23 = 528,477.36 : x
  2. Step 2: Convert to fraction form
    920,880.52/1,270,828.23 = 528,477.36/x
  3. Step 3: Cross multiply
    920,880.52x = 1,270,828.23 × 528,477.36
  4. Step 4: Simplify right side
    920,880.52x = 671,603,941,649.73
  5. Step 5: Solve for x
    x = 671,603,941,649.73/920,880.52
  6. Step 6: Final answer
    x = 729,306.28

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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.