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Finding the Fourth Proportional to 615,559.76, 849,856.68 and 472,043.60

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Solution

The fourth proportional to 615,559.76, 849,856.68 and 472,043.60 is: 651,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,559.76 : 849,856.68 = 472,043.60 : x
  2. Step 2: Convert to fraction form
    615,559.76/849,856.68 = 472,043.60/x
  3. Step 3: Cross multiply
    615,559.76x = 849,856.68 × 472,043.60
  4. Step 4: Simplify right side
    615,559.76x = 401,169,406,711.25
  5. Step 5: Solve for x
    x = 401,169,406,711.25/615,559.76
  6. Step 6: Final answer
    x = 651,714.80

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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.