Finding the Fourth Proportional to 430,769.78, 594,646.08 and 306,670.74
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Solution
The fourth proportional to 430,769.78, 594,646.08 and 306,670.74 is: 423,336.45
Step by Step Solution
- Step 1: Write the proportion equation
430,769.78 : 594,646.08 = 306,670.74 : x - Step 2: Convert to fraction form
430,769.78/594,646.08 = 306,670.74/x - Step 3: Cross multiply
430,769.78x = 594,646.08 × 306,670.74 - Step 4: Simplify right side
430,769.78x = 182,360,550,011.76 - Step 5: Solve for x
x = 182,360,550,011.76/430,769.78 - Step 6: Final answer
x = 423,336.45
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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.