Home / 1,212,897.60-1,817,159.40-580,417.20

Finding the Fourth Proportional to 1,212,897.60, 1,817,159.40 and 580,417.20

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Solution

The fourth proportional to 1,212,897.60, 1,817,159.40 and 580,417.20 is: 869,579.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,897.60 : 1,817,159.40 = 580,417.20 : x
  2. Step 2: Convert to fraction form
    1,212,897.60/1,817,159.40 = 580,417.20/x
  3. Step 3: Cross multiply
    1,212,897.60x = 1,817,159.40 × 580,417.20
  4. Step 4: Simplify right side
    1,212,897.60x = 1,054,710,570,901.68
  5. Step 5: Solve for x
    x = 1,054,710,570,901.68/1,212,897.60
  6. Step 6: Final answer
    x = 869,579.24

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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.