Home / 1,456,421.40-2,009,038.52-911,611.36

Finding the Fourth Proportional to 1,456,421.40, 2,009,038.52 and 911,611.36

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Solution

The fourth proportional to 1,456,421.40, 2,009,038.52 and 911,611.36 is: 1,257,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,421.40 : 2,009,038.52 = 911,611.36 : x
  2. Step 2: Convert to fraction form
    1,456,421.40/2,009,038.52 = 911,611.36/x
  3. Step 3: Cross multiply
    1,456,421.40x = 2,009,038.52 × 911,611.36
  4. Step 4: Simplify right side
    1,456,421.40x = 1,831,462,337,509.59
  5. Step 5: Solve for x
    x = 1,831,462,337,509.59/1,456,421.40
  6. Step 6: Final answer
    x = 1,257,508.53

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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.