Home / 630,278.03-869,748.71-358,308.18

Finding the Fourth Proportional to 630,278.03, 869,748.71 and 358,308.18

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Solution

The fourth proportional to 630,278.03, 869,748.71 and 358,308.18 is: 494,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,278.03 : 869,748.71 = 358,308.18 : x
  2. Step 2: Convert to fraction form
    630,278.03/869,748.71 = 358,308.18/x
  3. Step 3: Cross multiply
    630,278.03x = 869,748.71 × 358,308.18
  4. Step 4: Simplify right side
    630,278.03x = 311,638,075,545.91
  5. Step 5: Solve for x
    x = 311,638,075,545.91/630,278.03
  6. Step 6: Final answer
    x = 494,445.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.