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Finding the Fourth Proportional to 977,655.80, 1,465,317.30 and 877,345.40

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Solution

The fourth proportional to 977,655.80, 1,465,317.30 and 877,345.40 is: 1,314,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,655.80 : 1,465,317.30 = 877,345.40 : x
  2. Step 2: Convert to fraction form
    977,655.80/1,465,317.30 = 877,345.40/x
  3. Step 3: Cross multiply
    977,655.80x = 1,465,317.30 × 877,345.40
  4. Step 4: Simplify right side
    977,655.80x = 1,285,589,392,695.42
  5. Step 5: Solve for x
    x = 1,285,589,392,695.42/977,655.80
  6. Step 6: Final answer
    x = 1,314,971.38

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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.