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Finding the Fourth Proportional to 872,303.40, 1,308,455.10 and 872,303.40

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Solution

The fourth proportional to 872,303.40, 1,308,455.10 and 872,303.40 is: 1,308,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,303.40 : 1,308,455.10 = 872,303.40 : x
  2. Step 2: Convert to fraction form
    872,303.40/1,308,455.10 = 872,303.40/x
  3. Step 3: Cross multiply
    872,303.40x = 1,308,455.10 × 872,303.40
  4. Step 4: Simplify right side
    872,303.40x = 1,141,369,832,477.34
  5. Step 5: Solve for x
    x = 1,141,369,832,477.34/872,303.40
  6. Step 6: Final answer
    x = 1,308,455.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.