Home / 808,547.04-1,115,769.12-445,986.72

Finding the Fourth Proportional to 808,547.04, 1,115,769.12 and 445,986.72

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Solution

The fourth proportional to 808,547.04, 1,115,769.12 and 445,986.72 is: 615,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,547.04 : 1,115,769.12 = 445,986.72 : x
  2. Step 2: Convert to fraction form
    808,547.04/1,115,769.12 = 445,986.72/x
  3. Step 3: Cross multiply
    808,547.04x = 1,115,769.12 × 445,986.72
  4. Step 4: Simplify right side
    808,547.04x = 497,618,210,106.09
  5. Step 5: Solve for x
    x = 497,618,210,106.09/808,547.04
  6. Step 6: Final answer
    x = 615,447.45

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1.5x scale

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.