Home / 970,649.80-1,455,629.10-438,425.80

Finding the Fourth Proportional to 970,649.80, 1,455,629.10 and 438,425.80

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Solution

The fourth proportional to 970,649.80, 1,455,629.10 and 438,425.80 is: 657,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,649.80 : 1,455,629.10 = 438,425.80 : x
  2. Step 2: Convert to fraction form
    970,649.80/1,455,629.10 = 438,425.80/x
  3. Step 3: Cross multiply
    970,649.80x = 1,455,629.10 × 438,425.80
  4. Step 4: Simplify right side
    970,649.80x = 638,185,352,670.78
  5. Step 5: Solve for x
    x = 638,185,352,670.78/970,649.80
  6. Step 6: Final answer
    x = 657,482.60

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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.