Home / 759,869.40-1,139,803.86-286,444.05

Finding the Fourth Proportional to 759,869.40, 1,139,803.86 and 286,444.05

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Solution

The fourth proportional to 759,869.40, 1,139,803.86 and 286,444.05 is: 429,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,869.40 : 1,139,803.86 = 286,444.05 : x
  2. Step 2: Convert to fraction form
    759,869.40/1,139,803.86 = 286,444.05/x
  3. Step 3: Cross multiply
    759,869.40x = 1,139,803.86 × 286,444.05
  4. Step 4: Simplify right side
    759,869.40x = 326,490,033,864.03
  5. Step 5: Solve for x
    x = 326,490,033,864.03/759,869.40
  6. Step 6: Final answer
    x = 429,665.98

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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.