Home / 528,038.10-790,307.55-486,047.70

Finding the Fourth Proportional to 528,038.10, 790,307.55 and 486,047.70

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Solution

The fourth proportional to 528,038.10, 790,307.55 and 486,047.70 is: 727,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,038.10 : 790,307.55 = 486,047.70 : x
  2. Step 2: Convert to fraction form
    528,038.10/790,307.55 = 486,047.70/x
  3. Step 3: Cross multiply
    528,038.10x = 790,307.55 × 486,047.70
  4. Step 4: Simplify right side
    528,038.10x = 384,127,166,970.14
  5. Step 5: Solve for x
    x = 384,127,166,970.14/528,038.10
  6. Step 6: Final answer
    x = 727,461.08

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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.