Home / 875,115.34-1,312,369.39-306,483.89

Finding the Fourth Proportional to 875,115.34, 1,312,369.39 and 306,483.89

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Solution

The fourth proportional to 875,115.34, 1,312,369.39 and 306,483.89 is: 459,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,115.34 : 1,312,369.39 = 306,483.89 : x
  2. Step 2: Convert to fraction form
    875,115.34/1,312,369.39 = 306,483.89/x
  3. Step 3: Cross multiply
    875,115.34x = 1,312,369.39 × 306,483.89
  4. Step 4: Simplify right side
    875,115.34x = 402,220,075,764.13
  5. Step 5: Solve for x
    x = 402,220,075,764.13/875,115.34
  6. Step 6: Final answer
    x = 459,619.50

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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.