Finding the Fourth Proportional to 530,391.72, 732,211.74 and 409,261.08
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Solution
The fourth proportional to 530,391.72, 732,211.74 and 409,261.08 is: 564,989.53
Step by Step Solution
- Step 1: Write the proportion equation
530,391.72 : 732,211.74 = 409,261.08 : x - Step 2: Convert to fraction form
530,391.72/732,211.74 = 409,261.08/x - Step 3: Cross multiply
530,391.72x = 732,211.74 × 409,261.08 - Step 4: Simplify right side
530,391.72x = 299,665,767,501.08 - Step 5: Solve for x
x = 299,665,767,501.08/530,391.72 - Step 6: Final answer
x = 564,989.53
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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.