Home / 808,208.47-1,212,312.72-358,823.71

Finding the Fourth Proportional to 808,208.47, 1,212,312.72 and 358,823.71

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Solution

The fourth proportional to 808,208.47, 1,212,312.72 and 358,823.71 is: 538,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,208.47 : 1,212,312.72 = 358,823.71 : x
  2. Step 2: Convert to fraction form
    808,208.47/1,212,312.72 = 358,823.71/x
  3. Step 3: Cross multiply
    808,208.47x = 1,212,312.72 × 358,823.71
  4. Step 4: Simplify right side
    808,208.47x = 435,006,547,870.59
  5. Step 5: Solve for x
    x = 435,006,547,870.59/808,208.47
  6. Step 6: Final answer
    x = 538,235.57

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1.5x scale

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.