Home / 1,537,417.78-2,121,547.41-858,397.30

Finding the Fourth Proportional to 1,537,417.78, 2,121,547.41 and 858,397.30

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Solution

The fourth proportional to 1,537,417.78, 2,121,547.41 and 858,397.30 is: 1,184,538.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537,417.78 : 2,121,547.41 = 858,397.30 : x
  2. Step 2: Convert to fraction form
    1,537,417.78/2,121,547.41 = 858,397.30/x
  3. Step 3: Cross multiply
    1,537,417.78x = 2,121,547.41 × 858,397.30
  4. Step 4: Simplify right side
    1,537,417.78x = 1,821,130,568,565.99
  5. Step 5: Solve for x
    x = 1,821,130,568,565.99/1,537,417.78
  6. Step 6: Final answer
    x = 1,184,538.51

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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.