Home / 759,518.60-1,139,715.30-286,543.40

Finding the Fourth Proportional to 759,518.60, 1,139,715.30 and 286,543.40

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Solution

The fourth proportional to 759,518.60, 1,139,715.30 and 286,543.40 is: 429,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,518.60 : 1,139,715.30 = 286,543.40 : x
  2. Step 2: Convert to fraction form
    759,518.60/1,139,715.30 = 286,543.40/x
  3. Step 3: Cross multiply
    759,518.60x = 1,139,715.30 × 286,543.40
  4. Step 4: Simplify right side
    759,518.60x = 326,577,897,094.02
  5. Step 5: Solve for x
    x = 326,577,897,094.02/759,518.60
  6. Step 6: Final answer
    x = 429,980.12

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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.