Home / 1,001,097.20-1,501,645.80-812,140.40

Finding the Fourth Proportional to 1,001,097.20, 1,501,645.80 and 812,140.40

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Solution

The fourth proportional to 1,001,097.20, 1,501,645.80 and 812,140.40 is: 1,218,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,097.20 : 1,501,645.80 = 812,140.40 : x
  2. Step 2: Convert to fraction form
    1,001,097.20/1,501,645.80 = 812,140.40/x
  3. Step 3: Cross multiply
    1,001,097.20x = 1,501,645.80 × 812,140.40
  4. Step 4: Simplify right side
    1,001,097.20x = 1,219,547,220,670.32
  5. Step 5: Solve for x
    x = 1,219,547,220,670.32/1,001,097.20
  6. Step 6: Final answer
    x = 1,218,210.60

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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.