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Finding the Fourth Proportional to 863,482.86, 1,191,607.47 and 476,289.57

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Solution

The fourth proportional to 863,482.86, 1,191,607.47 and 476,289.57 is: 657,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,482.86 : 1,191,607.47 = 476,289.57 : x
  2. Step 2: Convert to fraction form
    863,482.86/1,191,607.47 = 476,289.57/x
  3. Step 3: Cross multiply
    863,482.86x = 1,191,607.47 × 476,289.57
  4. Step 4: Simplify right side
    863,482.86x = 567,550,209,495.09
  5. Step 5: Solve for x
    x = 567,550,209,495.09/863,482.86
  6. Step 6: Final answer
    x = 657,280.23

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Double scale
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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.