Home / 785,500.07-1,178,250.10-286,864.07

Finding the Fourth Proportional to 785,500.07, 1,178,250.10 and 286,864.07

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Solution

The fourth proportional to 785,500.07, 1,178,250.10 and 286,864.07 is: 430,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,500.07 : 1,178,250.10 = 286,864.07 : x
  2. Step 2: Convert to fraction form
    785,500.07/1,178,250.10 = 286,864.07/x
  3. Step 3: Cross multiply
    785,500.07x = 1,178,250.10 × 286,864.07
  4. Step 4: Simplify right side
    785,500.07x = 337,997,611,838.34
  5. Step 5: Solve for x
    x = 337,997,611,838.34/785,500.07
  6. Step 6: Final answer
    x = 430,296.10

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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.