Home / 740,547-1,021,955.40-401,015.52

Finding the Fourth Proportional to 740,547, 1,021,955.40 and 401,015.52

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Solution

The fourth proportional to 740,547, 1,021,955.40 and 401,015.52 is: 553,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,547 : 1,021,955.40 = 401,015.52 : x
  2. Step 2: Convert to fraction form
    740,547/1,021,955.40 = 401,015.52/x
  3. Step 3: Cross multiply
    740,547x = 1,021,955.40 × 401,015.52
  4. Step 4: Simplify right side
    740,547x = 409,819,976,147.81
  5. Step 5: Solve for x
    x = 409,819,976,147.81/740,547
  6. Step 6: Final answer
    x = 553,401.71

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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.