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Finding the Fourth Proportional to 630,547.50, 870,152.43 and 344,066.70

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Solution

The fourth proportional to 630,547.50, 870,152.43 and 344,066.70 is: 474,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,547.50 : 870,152.43 = 344,066.70 : x
  2. Step 2: Convert to fraction form
    630,547.50/870,152.43 = 344,066.70/x
  3. Step 3: Cross multiply
    630,547.50x = 870,152.43 × 344,066.70
  4. Step 4: Simplify right side
    630,547.50x = 299,390,475,087.08
  5. Step 5: Solve for x
    x = 299,390,475,087.08/630,547.50
  6. Step 6: Final answer
    x = 474,810.34

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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.