Home / 1,315,200.60-1,815,001.02-742,130.19

Finding the Fourth Proportional to 1,315,200.60, 1,815,001.02 and 742,130.19

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Solution

The fourth proportional to 1,315,200.60, 1,815,001.02 and 742,130.19 is: 1,024,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,200.60 : 1,815,001.02 = 742,130.19 : x
  2. Step 2: Convert to fraction form
    1,315,200.60/1,815,001.02 = 742,130.19/x
  3. Step 3: Cross multiply
    1,315,200.60x = 1,815,001.02 × 742,130.19
  4. Step 4: Simplify right side
    1,315,200.60x = 1,346,967,051,822.79
  5. Step 5: Solve for x
    x = 1,346,967,051,822.79/1,315,200.60
  6. Step 6: Final answer
    x = 1,024,153.31

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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.