Home / 530,448.43-732,038.15-288,719.32

Finding the Fourth Proportional to 530,448.43, 732,038.15 and 288,719.32

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Solution

The fourth proportional to 530,448.43, 732,038.15 and 288,719.32 is: 398,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,448.43 : 732,038.15 = 288,719.32 : x
  2. Step 2: Convert to fraction form
    530,448.43/732,038.15 = 288,719.32/x
  3. Step 3: Cross multiply
    530,448.43x = 732,038.15 × 288,719.32
  4. Step 4: Simplify right side
    530,448.43x = 211,353,556,882.06
  5. Step 5: Solve for x
    x = 211,353,556,882.06/530,448.43
  6. Step 6: Final answer
    x = 398,443.18

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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.