Finding the Fourth Proportional to 530,119.55, 732,006.45 and 491,655.08
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Solution
The fourth proportional to 530,119.55, 732,006.45 and 491,655.08 is: 678,893.45
Step by Step Solution
- Step 1: Write the proportion equation
530,119.55 : 732,006.45 = 491,655.08 : x - Step 2: Convert to fraction form
530,119.55/732,006.45 = 491,655.08/x - Step 3: Cross multiply
530,119.55x = 732,006.45 × 491,655.08 - Step 4: Simplify right side
530,119.55x = 359,894,691,565.28 - Step 5: Solve for x
x = 359,894,691,565.28/530,119.55 - Step 6: Final answer
x = 678,893.45
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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.