Finding the Fourth Proportional to 570,855.21, 855,877.50 and 286,341.09
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Solution
The fourth proportional to 570,855.21, 855,877.50 and 286,341.09 is: 429,308.33
Step by Step Solution
- Step 1: Write the proportion equation
570,855.21 : 855,877.50 = 286,341.09 : x - Step 2: Convert to fraction form
570,855.21/855,877.50 = 286,341.09/x - Step 3: Cross multiply
570,855.21x = 855,877.50 × 286,341.09 - Step 4: Simplify right side
570,855.21x = 245,072,896,256.48 - Step 5: Solve for x
x = 245,072,896,256.48/570,855.21 - Step 6: Final answer
x = 429,308.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.