Home / 753,670.93-1,129,870.95-326,885.45

Finding the Fourth Proportional to 753,670.93, 1,129,870.95 and 326,885.45

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Solution

The fourth proportional to 753,670.93, 1,129,870.95 and 326,885.45 is: 490,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,670.93 : 1,129,870.95 = 326,885.45 : x
  2. Step 2: Convert to fraction form
    753,670.93/1,129,870.95 = 326,885.45/x
  3. Step 3: Cross multiply
    753,670.93x = 1,129,870.95 × 326,885.45
  4. Step 4: Simplify right side
    753,670.93x = 369,338,371,154.63
  5. Step 5: Solve for x
    x = 369,338,371,154.63/753,670.93
  6. Step 6: Final answer
    x = 490,052.56

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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.