Home / 1,316,355.60-1,975,262-642,442.48

Finding the Fourth Proportional to 1,316,355.60, 1,975,262 and 642,442.48

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Solution

The fourth proportional to 1,316,355.60, 1,975,262 and 642,442.48 is: 964,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,355.60 : 1,975,262 = 642,442.48 : x
  2. Step 2: Convert to fraction form
    1,316,355.60/1,975,262 = 642,442.48/x
  3. Step 3: Cross multiply
    1,316,355.60x = 1,975,262 × 642,442.48
  4. Step 4: Simplify right side
    1,316,355.60x = 1,268,992,217,929.76
  5. Step 5: Solve for x
    x = 1,268,992,217,929.76/1,316,355.60
  6. Step 6: Final answer
    x = 964,019.31

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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.