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Finding the Fourth Proportional to 646,987.02, 892,830.03 and 360,500.94

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Solution

The fourth proportional to 646,987.02, 892,830.03 and 360,500.94 is: 497,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,987.02 : 892,830.03 = 360,500.94 : x
  2. Step 2: Convert to fraction form
    646,987.02/892,830.03 = 360,500.94/x
  3. Step 3: Cross multiply
    646,987.02x = 892,830.03 × 360,500.94
  4. Step 4: Simplify right side
    646,987.02x = 321,866,065,075.23
  5. Step 5: Solve for x
    x = 321,866,065,075.23/646,987.02
  6. Step 6: Final answer
    x = 497,484.58

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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.