Home / 808,280.40-1,212,323.40-334,916.40

Finding the Fourth Proportional to 808,280.40, 1,212,323.40 and 334,916.40

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Solution

The fourth proportional to 808,280.40, 1,212,323.40 and 334,916.40 is: 502,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,280.40 : 1,212,323.40 = 334,916.40 : x
  2. Step 2: Convert to fraction form
    808,280.40/1,212,323.40 = 334,916.40/x
  3. Step 3: Cross multiply
    808,280.40x = 1,212,323.40 × 334,916.40
  4. Step 4: Simplify right side
    808,280.40x = 406,026,988,763.76
  5. Step 5: Solve for x
    x = 406,026,988,763.76/808,280.40
  6. Step 6: Final answer
    x = 502,334.32

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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.