Home / 918,065.76-1,377,098.88-286,985.28

Finding the Fourth Proportional to 918,065.76, 1,377,098.88 and 286,985.28

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Solution

The fourth proportional to 918,065.76, 1,377,098.88 and 286,985.28 is: 430,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,065.76 : 1,377,098.88 = 286,985.28 : x
  2. Step 2: Convert to fraction form
    918,065.76/1,377,098.88 = 286,985.28/x
  3. Step 3: Cross multiply
    918,065.76x = 1,377,098.88 × 286,985.28
  4. Step 4: Simplify right side
    918,065.76x = 395,207,107,664.49
  5. Step 5: Solve for x
    x = 395,207,107,664.49/918,065.76
  6. Step 6: Final answer
    x = 430,478.00

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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.