Home / 1,287,465.15-1,776,690.40-706,671.08

Finding the Fourth Proportional to 1,287,465.15, 1,776,690.40 and 706,671.08

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Solution

The fourth proportional to 1,287,465.15, 1,776,690.40 and 706,671.08 is: 975,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,465.15 : 1,776,690.40 = 706,671.08 : x
  2. Step 2: Convert to fraction form
    1,287,465.15/1,776,690.40 = 706,671.08/x
  3. Step 3: Cross multiply
    1,287,465.15x = 1,776,690.40 × 706,671.08
  4. Step 4: Simplify right side
    1,287,465.15x = 1,255,535,711,376.82
  5. Step 5: Solve for x
    x = 1,255,535,711,376.82/1,287,465.15
  6. Step 6: Final answer
    x = 975,199.76

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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.