Home / 2,050,970.95-2,830,409.90-1,287,445.51

Finding the Fourth Proportional to 2,050,970.95, 2,830,409.90 and 1,287,445.51

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Solution

The fourth proportional to 2,050,970.95, 2,830,409.90 and 1,287,445.51 is: 1,776,718.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,050,970.95 : 2,830,409.90 = 1,287,445.51 : x
  2. Step 2: Convert to fraction form
    2,050,970.95/2,830,409.90 = 1,287,445.51/x
  3. Step 3: Cross multiply
    2,050,970.95x = 2,830,409.90 × 1,287,445.51
  4. Step 4: Simplify right side
    2,050,970.95x = 3,643,998,517,214.55
  5. Step 5: Solve for x
    x = 3,643,998,517,214.55/2,050,970.95
  6. Step 6: Final answer
    x = 1,776,718.74

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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.